diff --git a/audio.sch b/audio.sch
index e9ec87c..3f88092 100644
--- a/audio.sch
+++ b/audio.sch
@@ -22,6 +22,7 @@ F 1 "PAULA" H 3125 7079 50  0000 C CNN
 F 2 "Package_DIP:DIP-48_W15.24mm_Socket_LongPads" H 3125 5655 50  0001 C CNN
 F 3 "DOCUMENTATION" H 3125 5655 50  0001 C CNN
 F 4 "CUSTOM" H 3125 5655 50  0001 C CNN "Optional"
+F 5 "Y" H 3125 5655 50  0001 C CNN "Required"
 	1    3125 5655
 	1    0    0    -1  
 $EndComp
@@ -227,6 +228,7 @@ F 1 "Ferrite_Bead_Small" H 4430 8025 50  0001 L CNN
 F 2 "Raemixx500:Ferrite_Axial_L9.0mm_D3.2mm_P12.70mm" V 4260 8070 50  0001 C CNN
 F 3 "~" H 4330 8070 50  0001 C CNN
 F 4 "FERRITE" H 4330 8070 50  0001 C CNN "EMI_FILTER_TYPE"
+F 5 "Y" H 4330 8070 50  0001 C CNN "Required"
 	1    4330 8070
 	1    0    0    -1  
 $EndComp
@@ -2386,6 +2388,7 @@ F 1 "PAULA" H 1353 2140 50  0000 L CNN
 F 2 "Package_DIP:DIP-48_W15.24mm_Socket_LongPads" H 1125 2160 50  0001 C CNN
 F 3 "DOCUMENTATION" H 1125 2160 50  0001 C CNN
 F 4 "CUSTOM" H 1125 2160 50  0001 C CNN "Optional"
+F 5 "Y" H 1125 2160 50  0001 C CNN "Required"
 	2    1125 2160
 	1    0    0    -1  
 $EndComp
@@ -2412,6 +2415,7 @@ F 0 "R309" H 1195 1321 50  0000 L CNN
 F 1 "10" V 1125 1225 50  0000 L CNN
 F 2 "Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal" V 1055 1275 50  0001 C CNN
 F 3 "~" H 1125 1275 50  0001 C CNN
+F 4 "Y" H 1125 1275 50  0001 C CNN "Required"
 	1    1125 1275
 	1    0    0    -1  
 $EndComp
@@ -2443,6 +2447,7 @@ F 3 "~" H 1825 2115 50  0001 C CNN
 F 4 "KEMET" H 1825 2115 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 1825 2115 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 1825 2115 50  0001 C CNN "Cost"
+F 7 "R" H 1825 2115 50  0001 C CNN "Required"
 	1    1825 2115
 	1    0    0    -1  
 $EndComp
@@ -2462,6 +2467,7 @@ F 0 "R303" V 2595 1515 50  0000 C CNN
 F 1 "1k" V 2695 1515 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 2625 1515 50  0001 C CNN
 F 3 "~" H 2695 1515 50  0001 C CNN
+F 4 "Y" H 2695 1515 50  0001 C CNN "Required"
 	1    2695 1515
 	0    1    1    0   
 $EndComp
@@ -2484,6 +2490,7 @@ F 3 "~" H 2245 2115 50  0001 C CNN
 F 4 "0.343" H 2245 2115 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 2245 2115 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1C102" H 2245 2115 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 2245 2115 50  0001 C CNN "Required"
 	1    2245 2115
 	1    0    0    -1  
 $EndComp
@@ -2528,6 +2535,7 @@ F 0 "R304" V 3045 2115 50  0000 C CNN
 F 1 "1k" V 3145 2115 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 3075 2115 50  0001 C CNN
 F 3 "~" H 3145 2115 50  0001 C CNN
+F 4 "Y" H 3145 2115 50  0001 C CNN "Required"
 	1    3145 2115
 	-1   0    0    1   
 $EndComp
@@ -2548,6 +2556,7 @@ F 3 "~" H 3845 2115 50  0001 C CNN
 F 4 "KEMET" H 3845 2115 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 3845 2115 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 3845 2115 50  0001 C CNN "Cost"
+F 7 "R" H 3845 2115 50  0001 C CNN "Required"
 	1    3845 2115
 	1    0    0    -1  
 $EndComp
@@ -2570,6 +2579,7 @@ F 3 "~" H 4265 2115 50  0001 C CNN
 F 4 "0.196" H 4265 2115 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 4265 2115 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1H100" H 4265 2115 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 4265 2115 50  0001 C CNN "Required"
 	1    4265 2115
 	1    0    0    -1  
 $EndComp
diff --git a/cias.sch b/cias.sch
index cfc772a..3b41a5a 100644
--- a/cias.sch
+++ b/cias.sch
@@ -22,6 +22,7 @@ F 1 "VIA_8520" H 3315 4734 50  0000 C CNN
 F 2 "Package_DIP:DIP-40_W15.24mm_Socket_LongPads" H 3315 3460 50  0001 C CNN
 F 3 "DOCUMENTATION" H 3315 3460 50  0001 C CNN
 F 4 "CUSTOM" H 3315 3460 50  0001 C CNN "Optional"
+F 5 "Y" H 3315 3460 50  0001 C CNN "Required"
 	1    3315 3460
 	1    0    0    -1  
 $EndComp
@@ -681,6 +682,7 @@ F 1 "10k" H 6229 3445 50  0000 L CNN
 F 2 "Resistor_THT:R_Array_SIP10" V 6325 3490 50  0001 C CNN
 F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 5750 3490 50  0001 C CNN
 F 4 "KEYBOARD/FLOPPY/PARALLEL/MEMORY" H 5750 3490 50  0001 C CNN "Optional"
+F 5 "R" H 5750 3490 50  0001 C CNN "Required"
 	1    5750 3490
 	-1   0    0    -1  
 $EndComp
@@ -1363,6 +1365,7 @@ F 1 "68" V 1875 6825 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 1805 6825 50  0001 C CNN
 F 3 "~" H 1875 6825 50  0001 C CNN
 F 4 "PARALLEL/SERIAL/FLOPPY" H 1875 6825 50  0001 C CNN "Optional"
+F 5 "Y" H 1875 6825 50  0001 C CNN "Required"
 	1    1875 6825
 	0    1    1    0   
 $EndComp
@@ -2056,6 +2059,7 @@ F 4 "POR" H 12715 7695 50  0001 C CNN "Optional"
 F 5 "0.315" H 12715 7695 50  0001 C CNN "Cost"
 F 6 "TI" H 12715 7695 50  0001 C CNN "MFG Name"
 F 7 "NE555P" H 12715 7695 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 12715 7695 50  0001 C CNN "Required"
 	1    12715 7695
 	1    0    0    -1  
 $EndComp
@@ -2068,6 +2072,7 @@ F 1 "47K" V 11985 7205 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 11920 7205 50  0001 C CNN
 F 3 "~" H 11990 7205 50  0001 C CNN
 F 4 "POR" H 11990 7205 50  0001 C CNN "Optional"
+F 5 "Y" H 11990 7205 50  0001 C CNN "Required"
 	1    11990 7205
 	-1   0    0    1   
 $EndComp
@@ -2080,6 +2085,7 @@ F 1 "1M" V 11740 7205 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 11675 7205 50  0001 C CNN
 F 3 "~" H 11745 7205 50  0001 C CNN
 F 4 "POR" H 11745 7205 50  0001 C CNN "Optional"
+F 5 "Y" H 11745 7205 50  0001 C CNN "Required"
 	1    11745 7205
 	-1   0    0    1   
 $EndComp
@@ -2137,6 +2143,7 @@ F 4 "KEMET" H 13375 8095 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 13375 8095 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 13375 8095 50  0001 C CNN "Cost"
 F 7 "POR" H 13375 8095 50  0001 C CNN "Optional"
+F 8 "R" H 13375 8095 50  0001 C CNN "Required"
 	1    13375 8095
 	1    0    0    -1  
 $EndComp
@@ -2157,6 +2164,7 @@ F 1 "2N3904" H 14106 7450 50  0000 L CNN
 F 2 "Package_TO_SOT_THT:TO-92L_Inline_Wide" H 14115 7420 50  0001 L CIN
 F 3 "https://www.fairchildsemi.com/datasheets/2N/2N3904.pdf" H 13915 7495 50  0001 L CNN
 F 4 "POR" H 13915 7495 50  0001 C CNN "Optional"
+F 5 "Y" H 13915 7495 50  0001 C CNN "Required"
 	1    13915 7495
 	1    0    0    -1  
 $EndComp
@@ -2213,6 +2221,7 @@ F 4 "POR" H 15630 7720 50  0001 C CNN "Optional"
 F 5 "0.315" H 15630 7720 50  0001 C CNN "Cost"
 F 6 "TI" H 15630 7720 50  0001 C CNN "MFG Name"
 F 7 "NE555P" H 15630 7720 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 15630 7720 50  0001 C CNN "Required"
 	2    15630 7720
 	1    0    0    -1  
 $EndComp
@@ -2228,6 +2237,7 @@ F 4 "KEMET" H 15295 7785 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 15295 7785 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 15295 7785 50  0001 C CNN "Cost"
 F 7 "POR" H 15295 7785 50  0001 C CNN "Optional"
+F 8 "R" H 15295 7785 50  0001 C CNN "Required"
 	1    15295 7785
 	1    0    0    -1  
 $EndComp
@@ -2288,6 +2298,7 @@ F 1 "VIA_8520" H 6488 10240 50  0000 L CNN
 F 2 "Package_DIP:DIP-40_W15.24mm_Socket_LongPads" H 6260 10260 50  0001 C CNN
 F 3 "DOCUMENTATION" H 6260 10260 50  0001 C CNN
 F 4 "CUSTOM" H 6260 10260 50  0001 C CNN "Optional"
+F 5 "Y" H 6260 10260 50  0001 C CNN "Required"
 	2    6260 10260
 	1    0    0    -1  
 $EndComp
@@ -2314,6 +2325,7 @@ F 3 "~" H 7005 10240 50  0001 C CNN
 F 4 "KEMET" H 7005 10240 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 7005 10240 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 7005 10240 50  0001 C CNN "Cost"
+F 7 "R" H 7005 10240 50  0001 C CNN "Required"
 	1    7005 10240
 	1    0    0    -1  
 $EndComp
@@ -2328,6 +2340,7 @@ F 3 "~" H 8455 10240 50  0001 C CNN
 F 4 "KEMET" H 8455 10240 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 8455 10240 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 8455 10240 50  0001 C CNN "Cost"
+F 7 "R" H 8455 10240 50  0001 C CNN "Required"
 	1    8455 10240
 	1    0    0    -1  
 $EndComp
@@ -2413,6 +2426,7 @@ F 1 "1k" V 13535 7495 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 13465 7495 50  0001 C CNN
 F 3 "~" H 13535 7495 50  0001 C CNN
 F 4 "POR" H 13535 7495 50  0001 C CNN "Optional"
+F 5 "Y" H 13535 7495 50  0001 C CNN "Required"
 	1    13535 7495
 	0    1    1    0   
 $EndComp
@@ -2589,6 +2603,7 @@ F 4 "POR" H 11990 7795 50  0001 C CNN "Optional"
 F 5 "0.196" H 11990 7795 50  0001 C CNN "Cost"
 F 6 "PANASONIC" H 11990 7795 50  0001 C CNN "MFG Name"
 F 7 "EEUFR1H100" H 11990 7795 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 11990 7795 50  0001 C CNN "Required"
 	1    11990 7795
 	1    0    0    -1  
 $EndComp
@@ -2604,6 +2619,7 @@ F 4 "0.035" H 11745 7795 50  0001 C CNN "Cost"
 F 5 "AVX" H 11745 7795 50  0001 C CNN "MFG Name"
 F 6 "SA115C104KAR" H 11745 7795 50  0001 C CNN "MFG Part Num"
 F 7 "POR" H 11745 7795 50  0001 C CNN "Optional"
+F 8 "Y" H 11745 7795 50  0001 C CNN "Required"
 	1    11745 7795
 	1    0    0    -1  
 $EndComp
diff --git a/clockdist.sch b/clockdist.sch
index 82cd63c..49cd8ad 100644
--- a/clockdist.sch
+++ b/clockdist.sch
@@ -23,6 +23,7 @@ F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 3640 2550 50  0001 C CNN
 F 3 "http://www.ti.com/lit/gpn/sn74LS258" H 3640 2550 50  0001 C CNN
 F 4 "CLOCK" H 3640 2550 50  0001 C CNN "Optional"
 F 5 "N/A" H 3640 2550 50  0001 C CNN "MFG Name"
+F 6 "Y" H 3640 2550 50  0001 C CNN "Required"
 	1    3640 2550
 	1    0    0    -1  
 $EndComp
@@ -75,6 +76,7 @@ F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 6740 1650 50  0001 C CNN
 F 3 "http://www.ti.com/lit/gpn/sn74LS258" H 6740 1650 50  0001 C CNN
 F 4 "CLOCK" H 3640 3950 50  0001 C CNN "Optional"
 F 5 "N/A" H 3640 3950 50  0001 C CNN "MFG Name"
+F 6 "Y" H 3640 3950 50  0001 C CNN "Required"
 	2    3640 3950
 	1    0    0    -1  
 $EndComp
@@ -88,6 +90,7 @@ F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 6740 950 50  0001 C CNN
 F 3 "http://www.ti.com/lit/gpn/sn74LS258" H 6740 950 50  0001 C CNN
 F 4 "CLOCK" H 3640 3250 50  0001 C CNN "Optional"
 F 5 "N/A" H 3640 3250 50  0001 C CNN "MFG Name"
+F 6 "Y" H 3640 3250 50  0001 C CNN "Required"
 	3    3640 3250
 	1    0    0    -1  
 $EndComp
@@ -124,6 +127,7 @@ F 1 "39" V 4914 3250 50  0000 C CNN
 F 2 "Resistor_THT:R_Array_SIP10" V 5615 3250 50  0001 C CNN
 F 3 "~" H 5240 3250 50  0001 C CNN
 F 4 "CLOCK" H 5240 3250 50  0001 C CNN "Optional"
+F 5 "Y" H 5240 3250 50  0001 C CNN "Required"
 	1    5240 3250
 	0    1    1    0   
 $EndComp
@@ -197,6 +201,7 @@ F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 12890 1470 50  0001 C CNN
 F 3 "http://www.ti.com/lit/gpn/sn74LS258" H 12890 1470 50  0001 C CNN
 F 4 "CLOCK" H 9790 3770 50  0001 C CNN "Optional"
 F 5 "N/A" H 9790 3770 50  0001 C CNN "MFG Name"
+F 6 "Y" H 9790 3770 50  0001 C CNN "Required"
 	5    9790 3770
 	1    0    0    -1  
 $EndComp
@@ -284,6 +289,7 @@ F 4 "KEMET" H 10190 3870 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 10190 3870 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 10190 3870 50  0001 C CNN "Cost"
 F 7 "CLOCK" H 10190 3870 50  0001 C CNN "Optional"
+F 8 "R" H 10190 3870 50  0001 C CNN "Required"
 	1    10190 3870
 	1    0    0    -1  
 $EndComp
@@ -593,6 +599,7 @@ F 5 "W/FERRITE" H 9690 2870 50  0001 C CNN "EMI_FILTER_TYPE"
 F 6 "0.234" H 9690 2870 50  0001 C CNN "Cost"
 F 7 "MURATA" H 9690 2870 50  0001 C CNN "MFG Name"
 F 8 "DSS1NB32A103Q91A" H 9690 2870 50  0001 C CNN "MFG Part Num"
+F 9 "Y" H 9690 2870 50  0001 C CNN "Required"
 	1    9690 2870
 	0    1    1    0   
 $EndComp
@@ -612,6 +619,7 @@ F 2 "Raemixx500:EMI_Filter_Long" V 5390 4050 50  0001 C CNN
 F 3 "http://www.murata.com/~/media/webrenewal/support/library/catalog/products/emc/emifil/c31e.ashx?la=en-gb" V 5390 4050 50  0001 C CNN
 F 4 "CLOCK" H 5390 4050 50  0001 C CNN "Optional"
 F 5 "R" H 5390 4050 50  0001 C CNN "EMI_FILTER_TYPE"
+F 6 "Y" H 5390 4050 50  0001 C CNN "Required"
 	1    5390 4050
 	1    0    0    -1  
 $EndComp
@@ -627,6 +635,7 @@ F 2 "Raemixx500:EMI_Filter_Long" V 5390 4450 50  0001 C CNN
 F 3 "http://www.murata.com/~/media/webrenewal/support/library/catalog/products/emc/emifil/c31e.ashx?la=en-gb" V 5390 4450 50  0001 C CNN
 F 4 "CLOCK" H 5390 4450 50  0001 C CNN "Optional"
 F 5 "R" H 5390 4450 50  0001 C CNN "EMI_FILTER_TYPE"
+F 6 "Y" H 5390 4450 50  0001 C CNN "Required"
 	1    5390 4450
 	1    0    0    -1  
 $EndComp
diff --git a/cpu.sch b/cpu.sch
index 7fad834..dd65d69 100644
--- a/cpu.sch
+++ b/cpu.sch
@@ -22,6 +22,7 @@ F 1 "68" V 13230 2800 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 13160 2800 50  0001 C CNN
 F 3 "~" H 13230 2800 50  0001 C CNN
 F 4 "MEMORY" H 13230 2800 50  0001 C CNN "Optional"
+F 5 "Y" H 13230 2800 50  0001 C CNN "Required"
 	1    13230 2800
 	0    1    1    0   
 $EndComp
@@ -64,6 +65,7 @@ F 1 "FAT_AGNUS_8375" H 11480 7435 50  0000 C CNN
 F 2 "Package_LCC:PLCC-84_THT-Socket" H 11480 7485 50  0001 C CNN
 F 3 "DOCUMENTATION" H 11480 7485 50  0001 C CNN
 F 4 "CUSTOM" H 11480 7485 50  0001 C CNN "Optional"
+F 5 "Y" H 11480 7485 50  0001 C CNN "Required"
 	1    11480 7485
 	1    0    0    -1  
 $EndComp
@@ -76,6 +78,7 @@ F 1 "47" V 11685 4695 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 11610 4745 50  0001 C CNN
 F 3 "~" H 11680 4745 50  0001 C CNN
 F 4 "CLOCK" H 11680 4745 50  0001 C CNN "Optional"
+F 5 "Y" H 11680 4745 50  0001 C CNN "Required"
 	1    11680 4745
 	1    0    0    -1  
 $EndComp
@@ -88,6 +91,7 @@ F 1 "47" V 11885 4695 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 11810 4745 50  0001 C CNN
 F 3 "~" H 11880 4745 50  0001 C CNN
 F 4 "CLOCK" H 11880 4745 50  0001 C CNN "Optional"
+F 5 "Y" H 11880 4745 50  0001 C CNN "Required"
 	1    11880 4745
 	1    0    0    -1  
 $EndComp
@@ -100,6 +104,7 @@ F 1 "47" V 12085 4695 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 12010 4745 50  0001 C CNN
 F 3 "~" H 12080 4745 50  0001 C CNN
 F 4 "CLOCK" H 12080 4745 50  0001 C CNN "Optional"
+F 5 "Y" H 12080 4745 50  0001 C CNN "Required"
 	1    12080 4745
 	1    0    0    -1  
 $EndComp
@@ -431,6 +436,7 @@ F 4 "PARALLEL/FLOPPY/KEYBOARD" H 13200 4120 50  0001 C CNN "Optional"
 F 5 "0.442" H 13200 4120 50  0001 C CNN "Cost"
 F 6 "TI" H 13200 4120 50  0001 C CNN "MFG Name"
 F 7 "SN74LS32N" H 13200 4120 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 13200 4120 50  0001 C CNN "Required"
 	1    13200 4120
 	1    0    0    -1  
 $EndComp
@@ -446,6 +452,7 @@ F 4 "PARALLEL/FLOPPY/KEYBOARD" H 13200 4455 50  0001 C CNN "Optional"
 F 5 "0.442" H 13200 4455 50  0001 C CNN "Cost"
 F 6 "TI" H 13200 4455 50  0001 C CNN "MFG Name"
 F 7 "SN74LS32N" H 13200 4455 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 13200 4455 50  0001 C CNN "Required"
 	2    13200 4455
 	1    0    0    -1  
 $EndComp
@@ -613,6 +620,7 @@ F 1 "47" V 13395 8635 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 13325 8635 50  0001 C CNN
 F 3 "~" H 13395 8635 50  0001 C CNN
 F 4 "CLOCK" H 13395 8635 50  0001 C CNN "Optional"
+F 5 "Y" H 13395 8635 50  0001 C CNN "Required"
 	1    13395 8635
 	0    1    1    0   
 $EndComp
@@ -631,6 +639,7 @@ F 1 "47" V 13395 8495 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 13325 8495 50  0001 C CNN
 F 3 "~" H 13395 8495 50  0001 C CNN
 F 4 "CLOCK" H 13395 8495 50  0001 C CNN "Optional"
+F 5 "Y" H 13395 8495 50  0001 C CNN "Required"
 	1    13395 8495
 	0    1    1    0   
 $EndComp
@@ -713,6 +722,7 @@ F 1 "27" V 9850 3200 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 9780 3200 50  0001 C CNN
 F 3 "~" H 9850 3200 50  0001 C CNN
 F 4 "MEMORY" H 9850 3200 50  0001 C CNN "Optional"
+F 5 "Y" H 9850 3200 50  0001 C CNN "Required"
 	1    9850 3200
 	0    1    1    0   
 $EndComp
@@ -754,6 +764,7 @@ F 0 "R102" V 9180 2350 50  0000 C CNN
 F 1 "27" V 9275 2350 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 9205 2350 50  0001 C CNN
 F 3 "~" H 9275 2350 50  0001 C CNN
+F 4 "Y" H 9275 2350 50  0001 C CNN "Required"
 	1    9275 2350
 	0    1    1    0   
 $EndComp
@@ -779,6 +790,7 @@ F 1 "68000D" H 3635 4575 50  0000 C CNN
 F 2 "Package_DIP:DIP-64_W22.86mm_Socket_LongPads" H 3635 4635 50  0001 C CNN
 F 3 "https://www.nxp.com/docs/en/reference-manual/MC68000UM.pdf" H 3635 4635 50  0001 C CNN
 F 4 "CPU" H 3635 4635 50  0001 C CNN "Optional"
+F 5 "Y" H 3635 4635 50  0001 C CNN "Required"
 	1    3635 4635
 	1    0    0    -1  
 $EndComp
@@ -1014,6 +1026,7 @@ F 4 "MEMORY" H 6775 3835 50  0001 C CNN "Optional"
 F 5 "0.68" H 6775 3835 50  0001 C CNN "Cost"
 F 6 "TI" H 6775 3835 50  0001 C CNN "MFG Name"
 F 7 "SN74LS373N" H 6775 3835 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 6775 3835 50  0001 C CNN "Required"
 	1    6775 3835
 	-1   0    0    1   
 $EndComp
@@ -1029,6 +1042,7 @@ F 4 "MEMORY" H 6775 6635 50  0001 C CNN "Optional"
 F 5 "0.68" H 6775 6635 50  0001 C CNN "Cost"
 F 6 "TI" H 6775 6635 50  0001 C CNN "MFG Name"
 F 7 "SN74LS373N" H 6775 6635 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 6775 6635 50  0001 C CNN "Required"
 	1    6775 6635
 	-1   0    0    1   
 $EndComp
@@ -1054,6 +1068,7 @@ F 0 "R113" V 9230 1265 50  0000 C CNN
 F 1 "47" V 9270 1050 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 9200 1050 50  0001 C CNN
 F 3 "~" H 9270 1050 50  0001 C CNN
+F 4 "Y" H 9270 1050 50  0001 C CNN "Required"
 	1    9270 1050
 	0    1    1    0   
 $EndComp
@@ -1066,6 +1081,7 @@ F 1 "68" V 9270 1150 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 9200 1150 50  0001 C CNN
 F 3 "~" H 9270 1150 50  0001 C CNN
 F 4 "MEMORY" H 9270 1150 50  0001 C CNN "Optional"
+F 5 "Y" H 9270 1150 50  0001 C CNN "Required"
 	1    9270 1150
 	0    1    1    0   
 $EndComp
@@ -1078,6 +1094,7 @@ F 1 "68" V 9270 1250 50  0000 C CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 9200 1250 50  0001 C CNN
 F 3 "~" H 9270 1250 50  0001 C CNN
 F 4 "MEMORY" H 9270 1250 50  0001 C CNN "Optional"
+F 5 "Y" H 9270 1250 50  0001 C CNN "Required"
 	1    9270 1250
 	0    1    1    0   
 $EndComp
@@ -1101,6 +1118,7 @@ F 4 "MEMORY" H 6775 5230 50  0001 C CNN "Optional"
 F 5 "0.62" H 6775 5230 50  0001 C CNN "Cost"
 F 6 "TI" H 6775 5230 50  0001 C CNN "MFG Name"
 F 7 "SN74LS244N" H 6775 5230 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 6775 5230 50  0001 C CNN "Required"
 	1    6775 5230
 	1    0    0    1   
 $EndComp
@@ -1116,6 +1134,7 @@ F 4 "MEMORY" H 6775 2425 50  0001 C CNN "Optional"
 F 5 "0.62" H 6775 2425 50  0001 C CNN "Cost"
 F 6 "TI" H 6775 2425 50  0001 C CNN "MFG Name"
 F 7 "SN74LS244N" H 6775 2425 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 6775 2425 50  0001 C CNN "Required"
 	1    6775 2425
 	1    0    0    1   
 $EndComp
@@ -1767,6 +1786,7 @@ F 1 "GARY_5719" H 11480 2370 50  0000 C CNN
 F 2 "Package_DIP:DIP-48_W15.24mm_Socket_LongPads" H 11480 2650 50  0001 C CNN
 F 3 "DOCUMENTATION" H 11480 2200 50  0001 C CNN
 F 4 "CUSTOM" H 11480 2450 50  0001 C CNN "Optional"
+F 5 "Y" H 11480 2450 50  0001 C CNN "Required"
 	1    11480 2450
 	1    0    0    -1  
 $EndComp
@@ -1838,6 +1858,7 @@ F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 11710 7960 50  0001 C CNN
 F 3 "http://www.ti.com/lit/gpn/sn74LS258" H 11710 7960 50  0001 C CNN
 F 4 "CLOCK" H 8610 10260 50  0001 C CNN "Optional"
 F 5 "N/A" H 8610 10260 50  0001 C CNN "MFG Name"
+F 6 "Y" H 8610 10260 50  0001 C CNN "Required"
 	4    8610 10260
 	1    0    0    -1  
 $EndComp
@@ -1856,6 +1877,7 @@ F 5 "AVX" H 9970 10470 50  0001 C CNN "MFG Name"
 F 6 "SA102A220JARC" H 9970 10470 50  0001 C CNN "MFG Part Num"
 F 7 "CLOCK" H 9970 10470 50  0001 C CNN "Optional"
 F 8 "C" H 9970 10470 50  0001 C CNN "EMI_FILTER_TYPE"
+F 9 "R" H 9970 10470 50  0001 C CNN "Required"
 	1    9970 10470
 	1    0    0    -1  
 $EndComp
@@ -1910,6 +1932,7 @@ F 1 "XTAL" H 7105 10494 50  0000 C CNN
 F 2 "Oscillator:Oscillator_DIP-14" H 7150 9610 50  0001 C CNN
 F 3 "http://www.txccorp.com/download/products/osc/7C_o.pdf" H 6950 10260 50  0001 C CNN
 F 4 "CLOCK" H 7050 10260 50  0001 C CNN "Optional"
+F 5 "Y" H 7050 10260 50  0001 C CNN "Required"
 	1    7050 10260
 	1    0    0    -1  
 $EndComp
@@ -1931,6 +1954,7 @@ F 2 "Raemixx500:EMI_Filter_Long" V 7740 10260 50  0001 C CNN
 F 3 "http://www.murata.com/~/media/webrenewal/support/library/catalog/products/emc/emifil/c31e.ashx?la=en-gb" V 7740 10260 50  0001 C CNN
 F 4 "CLOCK" H 7740 10260 50  0001 C CNN "Optional"
 F 5 "R" H 7740 10260 50  0001 C CNN "EMI_FILTER_TYPE"
+F 6 "Y" H 7740 10260 50  0001 C CNN "Required"
 	1    7740 10260
 	1    0    0    -1  
 $EndComp
@@ -1960,6 +1984,7 @@ F 2 "Raemixx500:EMI_Filter_Long" V 9395 10360 50  0001 C CNN
 F 3 "http://www.murata.com/~/media/webrenewal/support/library/catalog/products/emc/emifil/c31e.ashx?la=en-gb" V 9395 10360 50  0001 C CNN
 F 4 "CLOCK" H 9395 10360 50  0001 C CNN "Optional"
 F 5 "R" H 9395 10360 50  0001 C CNN "EMI_FILTER_TYPE"
+F 6 "Y" H 9395 10360 50  0001 C CNN "Required"
 	1    9395 10360
 	1    0    0    -1  
 $EndComp
diff --git a/floppy.sch b/floppy.sch
index 6c160b6..f071e93 100644
--- a/floppy.sch
+++ b/floppy.sch
@@ -22,6 +22,7 @@ F 1 "GARY_5719" H 2685 2334 50  0000 C CNN
 F 2 "Package_DIP:DIP-48_W15.24mm_Socket_LongPads" H 2685 2060 50  0001 C CNN
 F 3 "DOCUMENTATION" H 2685 1610 50  0001 C CNN
 F 4 "CUSTOM" H 2685 1860 50  0001 C CNN "Optional"
+F 5 "Y" H 2685 1860 50  0001 C CNN "Required"
 	2    2685 1860
 	1    0    0    -1  
 $EndComp
diff --git a/power.sch b/power.sch
index bd4e5e6..18cad82 100644
--- a/power.sch
+++ b/power.sch
@@ -25,6 +25,7 @@ F 4 "PARALLEL/FLOPPY/KEYBOARD" H 8570 7060 50  0001 C CNN "Optional"
 F 5 "0.442" H 8570 7060 50  0001 C CNN "Cost"
 F 6 "TI" H 8570 7060 50  0001 C CNN "MFG Name"
 F 7 "SN74LS32N" H 8570 7060 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 8570 7060 50  0001 C CNN "Required"
 	5    8570 7060
 	1    0    0    -1  
 $EndComp
@@ -37,6 +38,7 @@ F 1 "GARY_5719" H 7498 5040 50  0000 L CNN
 F 2 "Package_DIP:DIP-48_W15.24mm_Socket_LongPads" H 7270 5260 50  0001 C CNN
 F 3 "DOCUMENTATION" H 7270 4810 50  0001 C CNN
 F 4 "CUSTOM" H 7270 5060 50  0001 C CNN "Optional"
+F 5 "Y" H 7270 5060 50  0001 C CNN "Required"
 	3    7270 5060
 	1    0    0    -1  
 $EndComp
@@ -49,6 +51,7 @@ F 1 "68000D" H 3120 4810 50  0000 L CNN
 F 2 "Package_DIP:DIP-64_W22.86mm_Socket_LongPads" H 2920 5110 50  0001 C CNN
 F 3 "https://www.nxp.com/docs/en/reference-manual/MC68000UM.pdf" H 2920 5110 50  0001 C CNN
 F 4 "CPU" H 2920 5110 50  0001 C CNN "Optional"
+F 5 "Y" H 2920 5110 50  0001 C CNN "Required"
 	2    2920 5110
 	1    0    0    -1  
 $EndComp
@@ -61,6 +64,7 @@ F 1 "FAT_AGNUS_8375" H 4570 4660 50  0000 L CNN
 F 2 "Package_LCC:PLCC-84_THT-Socket" H 4320 5010 50  0001 C CNN
 F 3 "DOCUMENTATION" H 4320 5010 50  0001 C CNN
 F 4 "CUSTOM" H 4420 5010 50  0001 C CNN "Optional"
+F 5 "Y" H 4420 5010 50  0001 C CNN "Required"
 	2    4420 5010
 	1    0    0    -1  
 $EndComp
@@ -90,6 +94,7 @@ F 4 "KEMET" H 3420 5060 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 3420 5060 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 3420 5060 50  0001 C CNN "Cost"
 F 7 "CPU" H 3420 5060 50  0001 C CNN "Optional"
+F 8 "R" H 3420 5060 50  0001 C CNN "Required"
 	1    3420 5060
 	1    0    0    -1  
 $EndComp
@@ -105,6 +110,7 @@ F 4 "W/FERRITE" H 4320 4110 50  0001 C CNN "EMI_FILTER_TYPE"
 F 5 "0.234" H 4320 4110 50  0001 C CNN "Cost"
 F 6 "MURATA" H 4320 4110 50  0001 C CNN "MFG Name"
 F 7 "DSS1NB32A103Q91A" H 4320 4110 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 4320 4110 50  0001 C CNN "Required"
 	1    4320 4110
 	0    1    1    0   
 $EndComp
@@ -122,6 +128,7 @@ F 4 "KEMET" H 4820 5060 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 4820 5060 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 4820 5060 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 4820 5060 50  0001 C CNN "Optional"
+F 8 "R" H 4820 5060 50  0001 C CNN "Required"
 	1    4820 5060
 	1    0    0    -1  
 $EndComp
@@ -160,6 +167,7 @@ F 4 "W/FERRITE" H 5770 4110 50  0001 C CNN "EMI_FILTER_TYPE"
 F 5 "0.234" H 5770 4110 50  0001 C CNN "Cost"
 F 6 "MURATA" H 5770 4110 50  0001 C CNN "MFG Name"
 F 7 "DSS1NB32A103Q91A" H 5770 4110 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 5770 4110 50  0001 C CNN "Required"
 	1    5770 4110
 	0    1    1    0   
 $EndComp
@@ -196,6 +204,7 @@ F 3 "~" H 6270 5110 50  0001 C CNN
 F 4 "KEMET" H 6270 5110 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 6270 5110 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 6270 5110 50  0001 C CNN "Cost"
+F 7 "R" H 6270 5110 50  0001 C CNN "Required"
 	1    6270 5110
 	1    0    0    -1  
 $EndComp
@@ -278,6 +287,7 @@ F 3 "~" H 8020 5110 50  0001 C CNN
 F 4 "KEMET" H 8020 5110 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 8020 5110 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 8020 5110 50  0001 C CNN "Cost"
+F 7 "R" H 8020 5110 50  0001 C CNN "Required"
 	1    8020 5110
 	1    0    0    -1  
 $EndComp
@@ -361,6 +371,7 @@ F 4 "MEMORY" H 2870 9310 50  0001 C CNN "Optional"
 F 5 "0.68" H 2870 9310 50  0001 C CNN "Cost"
 F 6 "TI" H 2870 9310 50  0001 C CNN "MFG Name"
 F 7 "SN74LS373N" H 2870 9310 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 2870 9310 50  0001 C CNN "Required"
 	2    2870 9310
 	1    0    0    -1  
 $EndComp
@@ -376,6 +387,7 @@ F 4 "MEMORY" H 5720 9310 50  0001 C CNN "Optional"
 F 5 "0.68" H 5720 9310 50  0001 C CNN "Cost"
 F 6 "TI" H 5720 9310 50  0001 C CNN "MFG Name"
 F 7 "SN74LS373N" H 5720 9310 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 5720 9310 50  0001 C CNN "Required"
 	2    5720 9310
 	1    0    0    -1  
 $EndComp
@@ -391,6 +403,7 @@ F 4 "MEMORY" H 1370 9260 50  0001 C CNN "Optional"
 F 5 "0.62" H 1370 9260 50  0001 C CNN "Cost"
 F 6 "TI" H 1370 9260 50  0001 C CNN "MFG Name"
 F 7 "SN74LS244N" H 1370 9260 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 1370 9260 50  0001 C CNN "Required"
 	2    1370 9260
 	1    0    0    -1  
 $EndComp
@@ -406,6 +419,7 @@ F 4 "MEMORY" H 4220 9260 50  0001 C CNN "Optional"
 F 5 "0.62" H 4220 9260 50  0001 C CNN "Cost"
 F 6 "TI" H 4220 9260 50  0001 C CNN "MFG Name"
 F 7 "SN74LS244N" H 4220 9260 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 4220 9260 50  0001 C CNN "Required"
 	2    4220 9260
 	1    0    0    -1  
 $EndComp
@@ -420,6 +434,7 @@ F 3 "~" H 3470 9260 50  0001 C CNN
 F 4 "KEMET" H 3470 9260 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 3470 9260 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 3470 9260 50  0001 C CNN "Cost"
+F 7 "R" H 3470 9260 50  0001 C CNN "Required"
 	1    3470 9260
 	1    0    0    -1  
 $EndComp
@@ -434,6 +449,7 @@ F 3 "~" H 6270 9260 50  0001 C CNN
 F 4 "KEMET" H 6270 9260 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 6270 9260 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 6270 9260 50  0001 C CNN "Cost"
+F 7 "R" H 6270 9260 50  0001 C CNN "Required"
 	1    6270 9260
 	1    0    0    -1  
 $EndComp
@@ -448,6 +464,7 @@ F 3 "~" H 1920 9260 50  0001 C CNN
 F 4 "KEMET" H 1920 9260 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 1920 9260 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 1920 9260 50  0001 C CNN "Cost"
+F 7 "R" H 1920 9260 50  0001 C CNN "Required"
 	1    1920 9260
 	1    0    0    -1  
 $EndComp
@@ -462,6 +479,7 @@ F 3 "~" H 4770 9260 50  0001 C CNN
 F 4 "KEMET" H 4770 9260 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 4770 9260 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 4770 9260 50  0001 C CNN "Cost"
+F 7 "R" H 4770 9260 50  0001 C CNN "Required"
 	1    4770 9260
 	1    0    0    -1  
 $EndComp
@@ -596,6 +614,7 @@ F 4 "MEMORY" H 3820 7110 50  0001 C CNN "Optional"
 F 5 "0.68" H 3820 7110 50  0001 C CNN "Cost"
 F 6 "TI" H 3820 7110 50  0001 C CNN "MFG Name"
 F 7 "SN74LS373N" H 3820 7110 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 3820 7110 50  0001 C CNN "Required"
 	2    3820 7110
 	1    0    0    -1  
 $EndComp
@@ -611,6 +630,7 @@ F 4 "MEMORY" H 5270 7060 50  0001 C CNN "Optional"
 F 5 "0.62" H 5270 7060 50  0001 C CNN "Cost"
 F 6 "TI" H 5270 7060 50  0001 C CNN "MFG Name"
 F 7 "SN74LS244N" H 5270 7060 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 5270 7060 50  0001 C CNN "Required"
 	2    5270 7060
 	1    0    0    -1  
 $EndComp
@@ -670,6 +690,7 @@ F 4 "KEMET" H 4370 7060 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 4370 7060 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 4370 7060 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 4370 7060 50  0001 C CNN "Optional"
+F 8 "R" H 4370 7060 50  0001 C CNN "Required"
 	1    4370 7060
 	1    0    0    -1  
 $EndComp
@@ -689,6 +710,7 @@ F 4 "KEMET" H 5920 7060 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 5920 7060 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 5920 7060 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 5920 7060 50  0001 C CNN "Optional"
+F 8 "R" H 5920 7060 50  0001 C CNN "Required"
 	1    5920 7060
 	1    0    0    -1  
 $EndComp
@@ -725,6 +747,7 @@ F 3 "~" H 9370 7060 50  0001 C CNN
 F 4 "KEMET" H 9370 7060 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 9370 7060 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 9370 7060 50  0001 C CNN "Cost"
+F 7 "R" H 9370 7060 50  0001 C CNN "Required"
 	1    9370 7060
 	1    0    0    -1  
 $EndComp
@@ -803,6 +826,7 @@ F 1 "XTAL" H 6020 4660 50  0000 L CNN
 F 2 "Oscillator:Oscillator_DIP-14" H 5970 4360 50  0001 C CNN
 F 3 "http://www.txccorp.com/download/products/osc/7C_o.pdf" H 5770 5010 50  0001 C CNN
 F 4 "CLOCK" H 5870 5010 50  0001 C CNN "Optional"
+F 5 "Y" H 5870 5010 50  0001 C CNN "Required"
 	2    5870 5010
 	1    0    0    -1  
 $EndComp
@@ -841,6 +865,7 @@ F 1 "POWER" H 2680 2280 50  0001 C CNN
 F 2 "Raemixx500:DS215+DIN8_COMBO" H 870 2390 50  0001 C CNN
 F 3 "~" H 870 2390 50  0001 C CNN
 F 4 "POWER" H 2820 1940 50  0001 C CNN "Optional"
+F 5 "Y" H 2820 1940 50  0001 C CNN "Required"
 	1    2820 1940
 	1    0    0    -1  
 $EndComp
@@ -853,6 +878,7 @@ F 1 "L" H 3690 2194 50  0000 C CNN
 F 2 "Raemixx500:LineFilter" V 3690 1970 50  0001 C CNN
 F 3 "~" V 3690 1970 50  0001 C CNN
 F 4 "POWER" H 3690 1920 50  0001 C CNN "Optional"
+F 5 "Y" H 3690 1920 50  0001 C CNN "Required"
 	1    3690 1920
 	1    0    0    -1  
 $EndComp
@@ -1020,6 +1046,7 @@ F 3 "~" H 4630 2430 50  0001 C CNN
 F 4 "KEMET" H 4630 2430 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 4630 2430 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 4630 2430 50  0001 C CNN "Cost"
+F 7 "R" H 4630 2430 50  0001 C CNN "Required"
 	1    4630 2430
 	1    0    0    -1  
 $EndComp
@@ -1064,6 +1091,7 @@ F 3 "~" H 5110 2430 50  0001 C CNN
 F 4 "KEMET" H 5110 2430 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 5110 2430 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 5110 2430 50  0001 C CNN "Cost"
+F 7 "R" H 5110 2430 50  0001 C CNN "Required"
 	1    5110 2430
 	1    0    0    -1  
 $EndComp
@@ -1079,6 +1107,7 @@ F 3 "~" H 5590 2430 50  0001 C CNN
 F 4 "0.265" H 5590 2430 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 5590 2430 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1H101" H 5590 2430 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 5590 2430 50  0001 C CNN "Required"
 	1    5590 2430
 	1    0    0    -1  
 $EndComp
@@ -1093,6 +1122,7 @@ F 3 "~" H 6070 2430 50  0001 C CNN
 F 4 "0.265" H 6070 2430 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 6070 2430 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1H101" H 6070 2430 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 6070 2430 50  0001 C CNN "Required"
 	1    6070 2430
 	1    0    0    -1  
 $EndComp
@@ -1107,6 +1137,7 @@ F 3 "~" H 6550 2430 50  0001 C CNN
 F 4 "0.265" H 6550 2430 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 6550 2430 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1H101" H 6550 2430 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 6550 2430 50  0001 C CNN "Required"
 	1    6550 2430
 	1    0    0    -1  
 $EndComp
@@ -1124,6 +1155,7 @@ F 3 "~" H 7030 2430 50  0001 C CNN
 F 4 "0.265" H 7030 2430 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 7030 2430 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1H101" H 7030 2430 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 7030 2430 50  0001 C CNN "Required"
 	1    7030 2430
 	1    0    0    -1  
 $EndComp
@@ -1138,6 +1170,7 @@ F 3 "~" H 7510 2430 50  0001 C CNN
 F 4 "0.265" H 7510 2430 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 7510 2430 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1H101" H 7510 2430 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 7510 2430 50  0001 C CNN "Required"
 	1    7510 2430
 	1    0    0    -1  
 $EndComp
@@ -1152,6 +1185,7 @@ F 3 "~" H 7990 2430 50  0001 C CNN
 F 4 "0.265" H 7990 2430 50  0001 C CNN "Cost"
 F 5 "PANASONIC" H 7990 2430 50  0001 C CNN "MFG Name"
 F 6 "EEUFR1H101" H 7990 2430 50  0001 C CNN "MFG Part Num"
+F 7 "R" H 7990 2430 50  0001 C CNN "Required"
 	1    7990 2430
 	1    0    0    -1  
 $EndComp
@@ -1331,6 +1365,7 @@ F 3 "~" H 3270 1770 50  0001 C CNN
 F 4 "KEMET" H 3270 1770 50  0001 C CNN "MFG Name"
 F 5 "C410C103K1H5TAAUTO" H 3270 1770 50  0001 C CNN "MFG Part Num"
 F 6 "0.071" H 3270 1770 50  0001 C CNN "Cost"
+F 7 "R" H 3270 1770 50  0001 C CNN "Required"
 	1    3270 1770
 	1    0    0    -1  
 $EndComp
diff --git a/ram.sch b/ram.sch
index a5386d3..1105593 100644
--- a/ram.sch
+++ b/ram.sch
@@ -49,6 +49,7 @@ F 4 "MEMORY" H 3100 2095 50  0001 C CNN "Optional"
 F 5 "0.68" H 3100 2095 50  0001 C CNN "Cost"
 F 6 "TI" H 3100 2095 50  0001 C CNN "MFG Name"
 F 7 "SN74LS373N" H 3100 2095 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 3100 2095 50  0001 C CNN "Required"
 	1    3100 2095
 	1    0    0    1   
 $EndComp
@@ -68,6 +69,7 @@ F 4 "MEMORY" H 3100 3625 50  0001 C CNN "Optional"
 F 5 "0.62" H 3100 3625 50  0001 C CNN "Cost"
 F 6 "TI" H 3100 3625 50  0001 C CNN "MFG Name"
 F 7 "SN74LS244N" H 3100 3625 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 3100 3625 50  0001 C CNN "Required"
 	1    3100 3625
 	1    0    0    1   
 $EndComp
@@ -274,6 +276,7 @@ F 1 "68" H 5390 2530 50  0000 C CNN
 F 2 "Resistor_THT:R_Array_SIP10" V 6265 2280 50  0001 C CNN
 F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 5390 2280 50  0001 C CNN
 F 4 "MEMORY" H 5390 2280 50  0001 C CNN "Optional"
+F 5 "Y" H 5390 2280 50  0001 C CNN "Required"
 	1    5390 2280
 	0    -1   1    0   
 $EndComp
@@ -286,6 +289,7 @@ F 1 "68" H 5390 4080 50  0000 C CNN
 F 2 "Resistor_THT:R_Array_SIP10" V 6265 3830 50  0001 C CNN
 F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 5390 3830 50  0001 C CNN
 F 4 "MEMORY" H 5390 3830 50  0001 C CNN "Optional"
+F 5 "Y" H 5390 3830 50  0001 C CNN "Required"
 	1    5390 3830
 	0    -1   1    0   
 $EndComp
@@ -427,6 +431,7 @@ F 1 "68" H 5390 6190 50  0000 C CNN
 F 2 "Resistor_THT:R_Array_SIP10" V 6265 5940 50  0001 C CNN
 F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 5390 5940 50  0001 C CNN
 F 4 "MEMORY" H 5390 5940 50  0001 C CNN "Optional"
+F 5 "Y" H 5390 5940 50  0001 C CNN "Required"
 	1    5390 5940
 	0    -1   1    0   
 $EndComp
@@ -603,6 +608,7 @@ F 1 "4.7k" V 7815 1585 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 7740 1665 50  0001 C CNN
 F 3 "~" H 7810 1665 50  0001 C CNN
 F 4 "MEMORY" H 7810 1665 50  0001 C CNN "Optional"
+F 5 "Y" H 7810 1665 50  0001 C CNN "Required"
 	1    7810 1665
 	1    0    0    -1  
 $EndComp
@@ -615,6 +621,7 @@ F 1 "4.7k" V 8165 3705 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 8090 3785 50  0001 C CNN
 F 3 "~" H 8160 3785 50  0001 C CNN
 F 4 "MEMORY" H 8160 3785 50  0001 C CNN "Optional"
+F 5 "Y" H 8160 3785 50  0001 C CNN "Required"
 	1    8160 3785
 	1    0    0    -1  
 $EndComp
@@ -672,6 +679,7 @@ F 1 "XX4256" H 9300 2324 50  0000 C CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 9300 1700 50  0001 C CNN
 F 3 "DOCUMENTATION" H 9300 1700 50  0001 C CNN
 F 4 "MEMORY" H 9300 1700 50  0001 C CNN "Optional"
+F 5 "Y" H 9300 1700 50  0001 C CNN "Required"
 	1    9300 1700
 	1    0    0    -1  
 $EndComp
@@ -684,6 +692,7 @@ F 1 "XX4256" H 10975 2324 50  0000 C CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 10975 1700 50  0001 C CNN
 F 3 "DOCUMENTATION" H 10975 1700 50  0001 C CNN
 F 4 "MEMORY" H 10975 1700 50  0001 C CNN "Optional"
+F 5 "Y" H 10975 1700 50  0001 C CNN "Required"
 	1    10975 1700
 	1    0    0    -1  
 $EndComp
@@ -696,6 +705,7 @@ F 1 "XX4256" H 12650 2324 50  0000 C CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 12650 1700 50  0001 C CNN
 F 3 "DOCUMENTATION" H 12650 1700 50  0001 C CNN
 F 4 "MEMORY" H 12650 1700 50  0001 C CNN "Optional"
+F 5 "Y" H 12650 1700 50  0001 C CNN "Required"
 	1    12650 1700
 	1    0    0    -1  
 $EndComp
@@ -708,6 +718,7 @@ F 1 "XX4256" H 14325 2324 50  0000 C CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 14325 1700 50  0001 C CNN
 F 3 "DOCUMENTATION" H 14325 1700 50  0001 C CNN
 F 4 "MEMORY" H 14325 1700 50  0001 C CNN "Optional"
+F 5 "Y" H 14325 1700 50  0001 C CNN "Required"
 	1    14325 1700
 	1    0    0    -1  
 $EndComp
@@ -1367,6 +1378,7 @@ F 3 "~" H 7185 7470 50  0001 C CNN
 F 4 "SKIP" H 7185 7470 50  0001 C CNN "MFG Name"
 F 5 "SKIP" H 7185 7470 50  0001 C CNN "MFG Part Num"
 F 6 "JMP" H 7185 7470 50  0001 C CNN "Optional"
+F 7 "Y" H 7185 7470 50  0001 C CNN "Required"
 	1    7185 7470
 	1    0    0    1   
 $EndComp
@@ -1413,6 +1425,7 @@ F 3 "~" H 7185 8260 50  0001 C CNN
 F 4 "SKIP" H 7185 8260 50  0001 C CNN "MFG Name"
 F 5 "SKIP" H 7185 8260 50  0001 C CNN "MFG Part Num"
 F 6 "JMP" H 7185 8260 50  0001 C CNN "Optional"
+F 7 "Y" H 7185 8260 50  0001 C CNN "Required"
 	1    7185 8260
 	1    0    0    1   
 $EndComp
@@ -1833,6 +1846,7 @@ F 1 "XX4256" H 12323 7080 50  0000 L CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 12095 7125 50  0001 C CNN
 F 3 "DOCUMENTATION" H 12095 7125 50  0001 C CNN
 F 4 "MEMORY" H 12095 7125 50  0001 C CNN "Optional"
+F 5 "Y" H 12095 7125 50  0001 C CNN "Required"
 	2    12095 7125
 	1    0    0    -1  
 $EndComp
@@ -1860,6 +1874,7 @@ F 4 "KEMET" H 11465 7130 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 11465 7130 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 11465 7130 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 11465 7130 50  0001 C CNN "Optional"
+F 8 "R" H 11465 7130 50  0001 C CNN "Required"
 	1    11465 7130
 	1    0    0    -1  
 $EndComp
@@ -1872,6 +1887,7 @@ F 1 "XX4256" H 14738 7080 50  0000 L CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 14510 7125 50  0001 C CNN
 F 3 "DOCUMENTATION" H 14510 7125 50  0001 C CNN
 F 4 "MEMORY" H 14510 7125 50  0001 C CNN "Optional"
+F 5 "Y" H 14510 7125 50  0001 C CNN "Required"
 	2    14510 7125
 	1    0    0    -1  
 $EndComp
@@ -1899,6 +1915,7 @@ F 4 "KEMET" H 13880 7130 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 13880 7130 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 13880 7130 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 13880 7130 50  0001 C CNN "Optional"
+F 8 "R" H 13880 7130 50  0001 C CNN "Required"
 	1    13880 7130
 	1    0    0    -1  
 $EndComp
@@ -1914,6 +1931,7 @@ F 4 "KEMET" H 15425 8910 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 15425 8910 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 15425 8910 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 15425 8910 50  0001 C CNN "Optional"
+F 8 "R" H 15425 8910 50  0001 C CNN "Required"
 	1    15425 8910
 	1    0    0    -1  
 $EndComp
@@ -1978,6 +1996,7 @@ F 1 "XX4256" H 11438 8860 50  0000 L CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 11210 8905 50  0001 C CNN
 F 3 "DOCUMENTATION" H 11210 8905 50  0001 C CNN
 F 4 "MEMORY" H 11210 8905 50  0001 C CNN "Optional"
+F 5 "Y" H 11210 8905 50  0001 C CNN "Required"
 	2    11210 8905
 	1    0    0    -1  
 $EndComp
@@ -2005,6 +2024,7 @@ F 4 "KEMET" H 10580 8910 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 10580 8910 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 10580 8910 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 10580 8910 50  0001 C CNN "Optional"
+F 8 "R" H 10580 8910 50  0001 C CNN "Required"
 	1    10580 8910
 	1    0    0    -1  
 $EndComp
@@ -2017,6 +2037,7 @@ F 1 "XX4256" H 13853 8860 50  0000 L CNN
 F 2 "Package_DIP:DIP-20_W7.62mm_Socket_LongPads" H 13625 8905 50  0001 C CNN
 F 3 "DOCUMENTATION" H 13625 8905 50  0001 C CNN
 F 4 "MEMORY" H 13625 8905 50  0001 C CNN "Optional"
+F 5 "Y" H 13625 8905 50  0001 C CNN "Required"
 	2    13625 8905
 	1    0    0    -1  
 $EndComp
@@ -2044,6 +2065,7 @@ F 4 "KEMET" H 12995 8910 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 12995 8910 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 12995 8910 50  0001 C CNN "Cost"
 F 7 "MEMORY" H 12995 8910 50  0001 C CNN "Optional"
+F 8 "R" H 12995 8910 50  0001 C CNN "Required"
 	1    12995 8910
 	1    0    0    -1  
 $EndComp
diff --git a/rom.sch b/rom.sch
index 994a1a5..05b5a92 100644
--- a/rom.sch
+++ b/rom.sch
@@ -126,6 +126,7 @@ F 1 "ROM" H 6640 4869 50  0000 C CNN
 F 2 "Package_DIP:DIP-42_W15.24mm_Socket_LongPads" H 6640 3595 50  0001 C CNN
 F 3 "DOCUMENTATION" H 6640 3595 50  0001 C CNN
 F 4 "ROM" H 6640 3595 50  0001 C CNN "Optional"
+F 5 "Y" H 6640 3595 50  0001 C CNN "Required"
 	1    6640 3595
 	1    0    0    -1  
 $EndComp
@@ -265,6 +266,7 @@ F 1 "ROM" H 9848 3575 50  0000 L CNN
 F 2 "Package_DIP:DIP-42_W15.24mm_Socket_LongPads" H 9620 3595 50  0001 C CNN
 F 3 "DOCUMENTATION" H 9620 3595 50  0001 C CNN
 F 4 "ROM" H 9620 3595 50  0001 C CNN "Optional"
+F 5 "Y" H 9620 3595 50  0001 C CNN "Required"
 	2    9620 3595
 	1    0    0    -1  
 $EndComp
@@ -305,6 +307,7 @@ F 3 "~" H 10425 3555 50  0001 C CNN
 F 4 "KEMET" H 10425 3555 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 10425 3555 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 10425 3555 50  0001 C CNN "Cost"
+F 7 "R" H 10425 3555 50  0001 C CNN "Required"
 	1    10425 3555
 	1    0    0    -1  
 $EndComp
@@ -515,12 +518,12 @@ Entry Wire Line
 	2150 4465 2050 4365
 Wire Wire Line
 	2150 4465 2550 4465
+Text Notes 1865 2030 0    50   ~ 0
+Simple Kickstart switcher, allowing\narbitrary driving of the high ROM\naddress lines. With a 27C160 EPROM,\nup to 8x256K Kickstart images can\nbe selected.
 Wire Bus Line
 	2050 2315 2050 4365
 Wire Bus Line
 	7900 1940 7900 4495
 Wire Bus Line
 	5200 2395 5200 4295
-Text Notes 1865 2030 0    50   ~ 0
-Simple Kickstart switcher, allowing\narbitrary driving of the high ROM\naddress lines. With a 27C160 EPROM,\nup to 8x256K Kickstart images can\nbe selected.
 $EndSCHEMATC
diff --git a/terminators.sch b/terminators.sch
index 00fba7f..9c348c2 100644
--- a/terminators.sch
+++ b/terminators.sch
@@ -855,6 +855,7 @@ F 4 "PARALLEL/FLOPPY/KEYBOARD" H 8660 5205 50  0001 C CNN "Optional"
 F 5 "0.442" H 8660 5205 50  0001 C CNN "Cost"
 F 6 "TI" H 8660 5205 50  0001 C CNN "MFG Name"
 F 7 "SN74LS32N" H 8660 5205 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 8660 5205 50  0001 C CNN "Required"
 	4    8660 5205
 	1    0    0    -1  
 $EndComp
@@ -870,6 +871,7 @@ F 4 "PARALLEL/FLOPPY/KEYBOARD" H 9625 5680 50  0001 C CNN "Optional"
 F 5 "0.442" H 9625 5680 50  0001 C CNN "Cost"
 F 6 "TI" H 9625 5680 50  0001 C CNN "MFG Name"
 F 7 "SN74LS32N" H 9625 5680 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 9625 5680 50  0001 C CNN "Required"
 	3    9625 5680
 	1    0    0    -1  
 $EndComp
diff --git a/video.sch b/video.sch
index d14cc7f..4404f48 100644
--- a/video.sch
+++ b/video.sch
@@ -22,6 +22,7 @@ F 1 "DENISE" H 3435 5249 50  0000 C CNN
 F 2 "Package_DIP:DIP-48_W15.24mm_Socket_LongPads" H 3435 3625 50  0001 C CNN
 F 3 "DOCUMENTATION" H 3435 3625 50  0001 C CNN
 F 4 "CUSTOM" H 3435 3625 50  0001 C CNN "Optional"
+F 5 "Y" H 3435 3625 50  0001 C CNN "Required"
 	1    3435 3625
 	1    0    0    -1  
 $EndComp
@@ -185,6 +186,7 @@ F 4 "VIDEO" H 5330 3475 50  0001 C CNN "Optional"
 F 5 "0.311" H 5330 3475 50  0001 C CNN "Cost"
 F 6 "TI" H 5330 3475 50  0001 C CNN "MFG Name"
 F 7 "CD74ACT245E" H 5330 3475 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 5330 3475 50  0001 C CNN "Required"
 	1    5330 3475
 	1    0    0    -1  
 $EndComp
@@ -248,6 +250,7 @@ F 4 "VIDEO" H 5330 4775 50  0001 C CNN "Optional"
 F 5 "0.311" H 5330 4775 50  0001 C CNN "Cost"
 F 6 "TI" H 5330 4775 50  0001 C CNN "MFG Name"
 F 7 "CD74ACT245E" H 5330 4775 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 5330 4775 50  0001 C CNN "Required"
 	1    5330 4775
 	1    0    0    -1  
 $EndComp
@@ -347,6 +350,7 @@ F 3 "DOCUMENTATION" H 7540 3675 50  0001 C CNN
 F 4 "SKIP" H 7540 3675 50  0001 C CNN "MFG Name"
 F 5 "SKIP" H 7540 3675 50  0001 C CNN "MFG Part Num"
 F 6 "VID" H 7540 3675 50  0001 C CNN "Optional"
+F 7 "Y" H 7540 3675 50  0001 C CNN "Required"
 	1    7540 3675
 	1    0    0    -1  
 $EndComp
@@ -638,6 +642,7 @@ F 1 "VIDEO_DB23M" H 14859 4377 50  0000 L CNN
 F 2 "Raemixx500:DB_23M" H 14680 4565 50  0001 C CNN
 F 3 " ~" H 14680 4565 50  0001 C CNN
 F 4 "VIDEO" H 14680 4565 50  0001 C CNN "Optional"
+F 5 "Y" H 14680 4565 50  0001 C CNN "Required"
 	1    14680 4565
 	1    0    0    -1  
 $EndComp
@@ -658,6 +663,7 @@ F 4 "W/FERRITE" H 14655 3185 50  0001 C CNN "EMI_FILTER_TYPE"
 F 5 "0.234" H 14655 3185 50  0001 C CNN "Cost"
 F 6 "MURATA" H 14655 3185 50  0001 C CNN "MFG Name"
 F 7 "DSS1NB32A103Q91A" H 14655 3185 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 14655 3185 50  0001 C CNN "Required"
 	1    14655 3185
 	-1   0    0    -1  
 $EndComp
@@ -694,6 +700,7 @@ F 4 "W/FERRITE" H 14540 2805 50  0001 C CNN "EMI_FILTER_TYPE"
 F 5 "0.234" H 14540 2805 50  0001 C CNN "Cost"
 F 6 "MURATA" H 14540 2805 50  0001 C CNN "MFG Name"
 F 7 "DSS1NB32A103Q91A" H 14540 2805 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 14540 2805 50  0001 C CNN "Required"
 	1    14540 2805
 	-1   0    0    -1  
 $EndComp
@@ -796,6 +803,7 @@ F 5 "VIDEO" H 13000 5940 50  0001 C CNN "Optional"
 F 6 "0.238" H 13000 5940 50  0001 C CNN "Cost"
 F 7 "MURATA" H 13000 5940 50  0001 C CNN "MFG Name"
 F 8 "DSS1NB32A151Q91A " H 13000 5940 50  0001 C CNN "MFG Part Num"
+F 9 "?" H 13000 5940 50  0001 C CNN "Required"
 	1    13000 5940
 	1    0    0    -1  
 $EndComp
@@ -831,6 +839,7 @@ F 5 "VIDEO" H 13460 2470 50  0001 C CNN "Optional"
 F 6 "0.238" H 13460 2470 50  0001 C CNN "Cost"
 F 7 "MURATA" H 13460 2470 50  0001 C CNN "MFG Name"
 F 8 "DSS1NB32A151Q91A " H 13460 2470 50  0001 C CNN "MFG Part Num"
+F 9 "Y" H 13460 2470 50  0001 C CNN "Required"
 	1    13460 2470
 	1    0    0    -1  
 $EndComp
@@ -851,6 +860,7 @@ F 1 "4.7k" V 12550 3035 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 12480 3120 50  0001 C CNN
 F 3 "~" H 12550 3120 50  0001 C CNN
 F 4 "" H 12550 3120 50  0001 C CNN "Optional"
+F 5 "Y" H 12550 3120 50  0001 C CNN "Required"
 	1    12550 3120
 	1    0    0    -1  
 $EndComp
@@ -863,6 +873,7 @@ F 1 "4.7k" V 12745 3035 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 12675 3120 50  0001 C CNN
 F 3 "~" H 12745 3120 50  0001 C CNN
 F 4 "" H 12745 3120 50  0001 C CNN "Optional"
+F 5 "Y" H 12745 3120 50  0001 C CNN "Required"
 	1    12745 3120
 	1    0    0    -1  
 $EndComp
@@ -875,6 +886,7 @@ F 1 "4.7k" V 12935 3030 50  0000 L CNN
 F 2 "Raemixx500:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 12865 3115 50  0001 C CNN
 F 3 "~" H 12935 3115 50  0001 C CNN
 F 4 "" H 12935 3115 50  0001 C CNN "Optional"
+F 5 "?" H 12935 3115 50  0001 C CNN "Required"
 	1    12935 3115
 	1    0    0    -1  
 $EndComp
@@ -987,6 +999,7 @@ F 4 "VIDEO" H 5950 8200 50  0001 C CNN "Optional"
 F 5 "0.311" H 5950 8200 50  0001 C CNN "Cost"
 F 6 "TI" H 5950 8200 50  0001 C CNN "MFG Name"
 F 7 "CD74ACT245E" H 5950 8200 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 5950 8200 50  0001 C CNN "Required"
 	2    5950 8200
 	1    0    0    -1  
 $EndComp
@@ -1002,6 +1015,7 @@ F 4 "VIDEO" H 7450 8200 50  0001 C CNN "Optional"
 F 5 "0.311" H 7450 8200 50  0001 C CNN "Cost"
 F 6 "TI" H 7450 8200 50  0001 C CNN "MFG Name"
 F 7 "CD74ACT245E" H 7450 8200 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 7450 8200 50  0001 C CNN "Required"
 	2    7450 8200
 	1    0    0    -1  
 $EndComp
@@ -1016,6 +1030,7 @@ F 3 "DOCUMENTATION" H 8900 8200 50  0001 C CNN
 F 4 "SKIP" H 8900 8200 50  0001 C CNN "MFG Name"
 F 5 "SKIP" H 8900 8200 50  0001 C CNN "MFG Part Num"
 F 6 "VID" H 8900 8200 50  0001 C CNN "Optional"
+F 7 "Y" H 8900 8200 50  0001 C CNN "Required"
 	2    8900 8200
 	-1   0    0    -1  
 $EndComp
@@ -1028,6 +1043,7 @@ F 1 "DENISE" H 3778 8080 50  0000 L CNN
 F 2 "Package_DIP:DIP-48_W15.24mm_Socket_LongPads" H 3550 8150 50  0001 C CNN
 F 3 "DOCUMENTATION" H 3550 8150 50  0001 C CNN
 F 4 "CUSTOM" H 3550 8150 50  0001 C CNN "Optional"
+F 5 "Y" H 3550 8150 50  0001 C CNN "Required"
 	2    3550 8150
 	1    0    0    -1  
 $EndComp
@@ -1054,6 +1070,7 @@ F 4 "W/FERRITE" H 3450 7200 50  0001 C CNN "EMI_FILTER_TYPE"
 F 5 "0.234" H 3450 7200 50  0001 C CNN "Cost"
 F 6 "MURATA" H 3450 7200 50  0001 C CNN "MFG Name"
 F 7 "DSS1NB32A103Q91A" H 3450 7200 50  0001 C CNN "MFG Part Num"
+F 8 "Y" H 3450 7200 50  0001 C CNN "Required"
 	1    3450 7200
 	0    1    1    0   
 $EndComp
@@ -1071,6 +1088,7 @@ F 4 "KEMET" H 4250 8200 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 4250 8200 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 4250 8200 50  0001 C CNN "Cost"
 F 7 "VIDEO" H 4250 8200 50  0001 C CNN "Optional"
+F 8 "R" H 4250 8200 50  0001 C CNN "Required"
 	1    4250 8200
 	1    0    0    -1  
 $EndComp
@@ -1160,6 +1178,8 @@ F 0 "R406" V 4600 7600 50  0000 C CNN
 F 1 "4.7" V 4700 7600 50  0000 C CNN
 F 2 "Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal" V 4630 7600 50  0001 C CNN
 F 3 "~" H 4700 7600 50  0001 C CNN
+F 4 "VID" H 4700 7600 50  0001 C CNN "Optional"
+F 5 "Y" H 4700 7600 50  0001 C CNN "Required"
 	1    4700 7600
 	0    1    1    0   
 $EndComp
@@ -1180,6 +1200,7 @@ F 3 "~" H 5150 8200 50  0001 C CNN
 F 4 "PANASONIC" H 5150 8200 50  0001 C CNN "MFG Name"
 F 5 "0.343" H 5150 8200 50  0001 C CNN "Cost"
 F 6 "EEUFR1C102" H 5150 8200 50  0001 C CNN "MFG Part Num"
+F 7 "Y" H 5150 8200 50  0001 C CNN "Required"
 	1    5150 8200
 	1    0    0    -1  
 $EndComp
@@ -1212,6 +1233,7 @@ F 4 "KEMET" H 6750 8200 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 6750 8200 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 6750 8200 50  0001 C CNN "Cost"
 F 7 "VIDEO" H 6750 8200 50  0001 C CNN "Optional"
+F 8 "R" H 6750 8200 50  0001 C CNN "Required"
 	1    6750 8200
 	1    0    0    -1  
 $EndComp
@@ -1231,6 +1253,7 @@ F 4 "KEMET" H 8200 8200 50  0001 C CNN "MFG Name"
 F 5 "C412C334M5U5TA" H 8200 8200 50  0001 C CNN "MFG Part Num"
 F 6 "0.078" H 8200 8200 50  0001 C CNN "Cost"
 F 7 "VIDEO" H 8200 8200 50  0001 C CNN "Optional"
+F 8 "R" H 8200 8200 50  0001 C CNN "Required"
 	1    8200 8200
 	1    0    0    -1  
 $EndComp
@@ -1302,6 +1325,7 @@ F 3 "~" H 9625 8200 50  0001 C CNN
 F 4 "PANASONIC" H 9625 8200 50  0001 C CNN "MFG Name"
 F 5 "0.343" H 9625 8200 50  0001 C CNN "Cost"
 F 6 "EEUFR1C102" H 9625 8200 50  0001 C CNN "MFG Part Num"
+F 7 "Y" H 9625 8200 50  0001 C CNN "Required"
 	1    9625 8200
 	1    0    0    -1  
 $EndComp
@@ -1331,6 +1355,8 @@ F 0 "R405" V 9975 7600 50  0000 C CNN
 F 1 "0.47" V 10075 7600 50  0000 C CNN
 F 2 "Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal" V 10005 7600 50  0001 C CNN
 F 3 "~" H 10075 7600 50  0001 C CNN
+F 4 "VID" H 10075 7600 50  0001 C CNN "Optional"
+F 5 "Y" H 10075 7600 50  0001 C CNN "Required"
 	1    10075 7600
 	0    1    1    0   
 $EndComp
@@ -1419,6 +1445,7 @@ F 0 "R409" H 9750 4345 50  0000 L CNN
 F 1 "150" V 9740 4125 50  0000 L CNN
 F 2 "Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal" V 9670 4195 50  0001 C CNN
 F 3 "~" H 9740 4195 50  0001 C CNN
+F 4 "Y" H 9740 4195 50  0001 C CNN "Required"
 	1    9740 4195
 	1    0    0    -1  
 $EndComp
@@ -1497,6 +1524,7 @@ F 5 "VIDEO" H 12100 5065 50  0001 C CNN "Optional"
 F 6 "0.129" H 12100 5065 50  0001 C CNN "Cost"
 F 7 "MURATA" H 12100 5065 50  0001 C CNN "MFG Name"
 F 8 "BL02RN2R1M2B" H 12100 5065 50  0001 C CNN "MFG Part Num"
+F 9 "Y" H 12100 5065 50  0001 C CNN "Required"
 	1    12100 5065
 	1    0    0    -1  
 $EndComp
@@ -1515,6 +1543,7 @@ F 5 "VIDEO" H 12100 5465 50  0001 C CNN "Optional"
 F 6 "0.129" H 12100 5465 50  0001 C CNN "Cost"
 F 7 "MURATA" H 12100 5465 50  0001 C CNN "MFG Name"
 F 8 "BL02RN2R1M2B" H 12100 5465 50  0001 C CNN "MFG Part Num"
+F 9 "Y" H 12100 5465 50  0001 C CNN "Required"
 	1    12100 5465
 	1    0    0    -1  
 $EndComp
@@ -1533,6 +1562,7 @@ F 5 "VIDEO" H 11450 5265 50  0001 C CNN "Optional"
 F 6 "0.129" H 11450 5265 50  0001 C CNN "Cost"
 F 7 "MURATA" H 11450 5265 50  0001 C CNN "MFG Name"
 F 8 "BL02RN2R1M2B" H 11450 5265 50  0001 C CNN "MFG Part Num"
+F 9 "Y" H 11450 5265 50  0001 C CNN "Required"
 	1    11450 5265
 	1    0    0    -1  
 $EndComp
@@ -1600,6 +1630,7 @@ F 5 "VIDEO" H 9120 4075 50  0001 C CNN "Optional"
 F 6 "0.129" H 9120 4075 50  0001 C CNN "Cost"
 F 7 "MURATA" H 9120 4075 50  0001 C CNN "MFG Name"
 F 8 "BL02RN2R1M2B" H 9120 4075 50  0001 C CNN "MFG Part Num"
+F 9 "Y" H 9120 4075 50  0001 C CNN "Required"
 	1    9120 4075
 	1    0    0    -1  
 $EndComp
@@ -1650,6 +1681,7 @@ F 4 "Switchcraft" H 10280 4175 50  0001 L BNN "Field4"
 F 5 "13mm" H 10280 4175 50  0001 L BNN "Field5"
 F 6 "Manufacturer Recommendations" H 10280 4175 50  0001 L BNN "Field6"
 F 7 "VIDEO" H 10280 4175 50  0001 C CNN "Optional"
+F 8 "Y" H 10280 4175 50  0001 C CNN "Required"
 	1    10280 4175
 	-1   0    0    -1  
 $EndComp