need a replacement button

so i have bought a 2nd spectrum 4k monitor from an outlet nearby. after already having an eve spectrum 4k model from the original sorting
iam happy with the monitor and it offers me what i need

the problem is with the outlet monitor that the button on the back is broken. likely due to user error or just plain brute force instead of using it properly(my own screen does not have this issue)
the buttons layout top bottom and left work but the right click and press click both no longer function

i have taken apart the screen as repair electronics often enough to not worry about damaging anything in the process.

what iam looking for is a replacement backbone button for the monitors control
in exact yes the controlboard with stick button and led on it that is normally mounted in the backplate of the screen

20230117_190718
20230117_190744

one of these control boards. so i can fix my 2nd screen and use it properly