Optional core PCSX-ReArmed - Hotkey?

[R4L]

Hey guys. I've scoured Google for an answer, and I'm sure it's probably a simple one but I cannot find it.

I'm using the optional non lr core PCSX-ReArmed for my Freeplay Zero build, and let me say how awesome it is to play PS1 at full speed on a Pi Zero! However, I'd like to be able to, say, press select and start to open the emulator menu. I've opened the config and found the button binds, but I'm not sure how to change the bind to be two buttons pressed together, if that's even do-able.

Any help would be appreciated!

[Roverius]

I had a bit of the same issue.
If i understand correctly, then when you press the "escape" key on keyboard the menu pops up.
What i did, i assigned in the controller setup a unused key, like the right thumbs key for example. I used the LR3 button to let it assign. In my case it made the "LR3 \XAC" key.
I saved the setting to global.
edited the file " /opt/retropie/configs/psx/pcsx/pcsc.cfg"
Changed the line "bind \xAC = LR3" to "bind \xAC = Enter Menu"
Saved file restart game. Then pressing the Right thumb opened the menu.