ok, as i say before i publish psx4m-gui in repository
also i update psx4m to 0.4.3-1 version
savestate should work if directory /opt/usr/psx4m/ is present(but it doesn't work to me, maybe smoku have bad experience with save\load too, because i just enable it)
new keys also present(diagonals)
Abe's Oddysee Fix can be enabled too

//P.S. not tested at all