Feedrate/Rapid/Spindle Override reset to 100% using a physical button

I know this has been discussed at length on other GUIs, but I was wondering what pins were available to reset overrides to 100%?  I have those little encoders with push buttons for resetting overrides to 100%.  I know in Linuxcnc 2.9 there are pins that are like feedrate_override.reset, but these are do not seem present in 2.8, which pathpilot is built off.  I was wondering if there was a good work around for this? Or is Pathpilot had other pins built in for this?  I know there's software buttons for this, I'd like to encorporate my physical buttons.

So if found the button in Python, how do I have a physical button call code in python?

I do this with keyboard shortcuts and xdotool. Maybe not as clean as something in python, but works perfectly and I use it dozens of times per day.