Well if I've done the backwards translation correct ....

%11001

Should be the "Status Request".

The way it translates is... (suedo code)

temp = (Keycode + 4) & $0F
if Keycode.4 = 1 then temp = temp + $10
if temp.2 = 1 then temp = temp ^ 2

So by entering %11001 for the KeyCode, it should end up with %11111, which is "Status Request"
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HTW,