Don’t know if this is what you are looking for, but
I installed a program called ‘Key Tweaks’ to enable
remapping a PC keyboard which affects every program, etc.
I’m a long-time Mac user, and I found myself always
pressing ‘Alt + S’ to save, so I remapped just the left
side Alt and Ctrl keys (swapped them). Works slick, but
confuses other users (I don’t think this follows Win user
log-ins either, but I could be mistaken about that.)
I don’t know if it will allow what you’re looking to do
in PP though. Worth I try. Give it a search on
the web, I found it for download without trouble. Good luck!
-Troy
Flying Spot, Seattle