Just ran a short test and it looks like AHG works beautifully with CafeTran.
Here's a script that duplicates the content of the target editor (or Find/Replace dialogue etc.) when you press CTRL+T:
And another one that adds a term pair to a glossary:
Of course, you'd want to replace "Source term" and "Target term" with your current selections in the source editor and target editor. Something like:
SourceTerm := %clipboard%
TargetTerm := %clipboard%
And once you've figured out how to add a term pair to a glossary, you can use all kind of manipulations before sending it to the glossary.
CAR > auto
Car > Auto
car > AUTO
car > auto;autos;automotica
Nice set of case conversion macros: https://autohotkey.com/board/topic/24431-convert-text-uppercase-lowercase-capitalized-or-inverted/
Does it accept it's simulated keystrokes without any problems?