@djdiabolik yes under input general just map any combo you'd like. I use "player1 start + player2 start + X". Just press all the buttons at the same time when mapping your custom combo.
The home button is not supported.
@saccublenda Thanks. Don't have a keyboard plugged on my bartop so I will use the Quick menu / options solutions...I can live with that.
@mahoneyt944 , @Melvin-FoX Thanks for the suggestion, disabling the digital autocenter did the trick!
One final note...
I had been doing all of my testing on an x86 platform. Since moving the scripts/overlays to my RPI4, I had to increase the sleep outside the loop to 2 otherwise it wouldn't pause.
I was able to disable the MAME menu by coming in through the Retroarch menu. However, it didn't seem to "stick". Is there something that needs to be done to save the changes once they are made?
@grant2258 That did the trick, many thanks :)
Hi again, I don't know what I did but somehow I managed to get it working finally! Thank you for the tips though :-)