So your talking more about a Playlist that automatically mutes or un-mutes certain tracks as a “Global” standard or stored settings? Because every time you save a song in Utool…. it remembers your mixer settings… That’s why I prefer having actual different song names for the same song…. Example – NoBass-TomSawyer, NoKeys-TomSawyer, NoDrums-TomSawyer, Full-TomSawyer… Using one set of multitracks. More work though.