diff --git a/PHI-CL/data.lua b/PHI-CL/data.lua
index 5b04728..f75e0b5 100644
--- a/PHI-CL/data.lua
+++ b/PHI-CL/data.lua
@@ -1329,23 +1329,19 @@ if settings.startup['PHI-CT'].value then
     end
 
     if settings.startup['PHI-CT-UTILITY'].value then
-        local nsg = {
-            ['virtual-signal-number'] = true,
-            ['virtual-signal-letter'] = true
-        }
+        local vir_sig = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'
         local s = {}
 
-        for _, v in pairs(data.raw['virtual-signal']) do
-            if nsg[v.subgroup] then
-                table.insert(s, {
-                    type = 'virtual-signal',
-                    name = v.name .. 'A',
-                    icon = items['general']['graphics_location'] .. 'signal/' .. v.name:gsub('-', '_') .. '.png',
-                    subgroup = v.subgroup,
-                    order = (v.subgroup == 'virtual-signal-number' and 'b[numbers]2-[' or 'c[letters]2-[') .. v.name:gsub('signal-', '') .. ']',
-                    localised_name = {'phi-cl.combine', 'virtual-signal-name.' .. v.name, '(II)'}
-                })
-            end
+        for i = 1, #vir_sig do
+            local char = vir_sig:sub(i, i)
+            table.insert(s, {
+                type = 'virtual-signal',
+                name = char .. 'A',
+                icon = items['general']['graphics_location'] .. 'signal/signal_' .. char .. '.png',
+                subgroup = string.match(char, '%d') and 'virtual-signal-number' or 'virtual-signal-letter',
+                order = (string.match(char, '%d') and 'b[numbers]2-[' or 'c[letters]2-[') .. char .. ']',
+                localised_name = {'phi-cl.combine', 'virtual-signal-name.signal-' .. char, '(II)'}
+            })
         end
 
         data:extend(s)
diff --git a/PHI-CL/graphics/signal/signal-fluid-parameter.png b/PHI-CL/graphics/signal/signal-fluid-parameter.png
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diff --git a/PHI-CL/graphics/signal/signal-fuel-parameter.png b/PHI-CL/graphics/signal/signal-fuel-parameter.png
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diff --git a/PHI-CL/graphics/signal/signal-ghost.png b/PHI-CL/graphics/signal/signal-ghost.png
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diff --git a/PHI-CL/graphics/signal/signal-heart.png b/PHI-CL/graphics/signal/signal-heart.png
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diff --git a/PHI-CL/graphics/signal/signal-item-parameter.png b/PHI-CL/graphics/signal/signal-item-parameter.png
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diff --git a/PHI-CL/graphics/signal/signal-signal-parameter.png b/PHI-CL/graphics/signal/signal-signal-parameter.png
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diff --git a/PHI-CL/graphics/signal/signal-skull.png b/PHI-CL/graphics/signal/signal-skull.png
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diff --git a/PHI-CL/graphics/signal/signal-stack-size.png b/PHI-CL/graphics/signal/signal-stack-size.png
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diff --git a/PHI-CL/graphics/signal/signal_anything.png b/PHI-CL/graphics/signal/signal_anything.png
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diff --git a/PHI-CL/graphics/signal/signal_black.png b/PHI-CL/graphics/signal/signal_black.png
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diff --git a/PHI-CL/graphics/signal/signal_blue.png b/PHI-CL/graphics/signal/signal_blue.png
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diff --git a/PHI-CL/graphics/signal/signal_cyan.png b/PHI-CL/graphics/signal/signal_cyan.png
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diff --git a/PHI-CL/graphics/signal/signal_each.png b/PHI-CL/graphics/signal/signal_each.png
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diff --git a/PHI-CL/graphics/signal/signal_everything.png b/PHI-CL/graphics/signal/signal_everything.png
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diff --git a/PHI-CL/graphics/signal/signal_green.png b/PHI-CL/graphics/signal/signal_green.png
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diff --git a/PHI-CL/graphics/signal/signal_grey.png b/PHI-CL/graphics/signal/signal_grey.png
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diff --git a/PHI-CL/graphics/signal/signal_pink.png b/PHI-CL/graphics/signal/signal_pink.png
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diff --git a/PHI-CL/graphics/signal/signal_red.png b/PHI-CL/graphics/signal/signal_red.png
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diff --git a/PHI-CL/graphics/signal/signal_white.png b/PHI-CL/graphics/signal/signal_white.png
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diff --git a/PHI-CL/graphics/signal/signal_yellow.png b/PHI-CL/graphics/signal/signal_yellow.png
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