VKB-SIM

I am trying to map the same button to multiple buttons, I've found that sometimes it overwrites existing buttons functions.

Please explain more precisely - what do you want and what have you done (if any).

trying to map right side "CTRL" to pinky button on stick and up on the top right thumb hat.

No problems. Run vkbdevcfg.exe. Open Buttons - Physical tab. Check Poll. Press desired joystick button. Click cell that answers with red dot. Map keystroke: select KEY_******* and right Ctrl.
Repeat actions for next desired button. Do not forget to enable mapping and select virtual kbd mode.
Press Set.
Enjoy.

Ahhh, thank you. That last part was what I was screwing up. Thank you so much once again guys, awesome support