> I found XButton1 and XButton2 mentioned in another controller mapping app, but I have no idea what the other buttons are generally called. I suppose they are less standard.
XButton1 and XButton2 are names used in AutoHotkey. See
https://www.autohotkey.com/docs/KeyList....se-general
For other "custom" buttons, you will need to use one of these techniques:
https://www.autohotkey.com/docs/KeyList.htm#SpecialKeys
> I might also check out 'set-point' from Logitech and see if I can set macros there
It is another possible solution. If you can launch a command-line (QAPmessenger.exe) from this macro.