so .. another midimix REAPER config with project
mute solo
knobs send to different fx busses
recarm shoots to parallel fx bus
audio content is from rebelution

create a portable REAPER instance , or start reaper using a separate directory .. 'reaper cfgfile ~/mydirectory/reaper.ini' (linux dialect), create this directory before and put your lic file into it, load the config into this instance and have fun
the midimix has to be in default state