[George]

Edit time ran out while I was re-posting.

Microstudio has never read .lst files. Those are files assigned to Karaoke Home Producer to be able to save works in progress for editing prior to exporting as CDG/BIN, at which time the .lst extension was changed to CDG/BIN for playing in Microstudio or any other Karaoke player.

You can do what you wish by creating sub folders within your default folder, and moving your CDG/BIN/KMA/MP3/ZIP tracks into whatever folder you wish. To play a particular group of tracks, you'd click BROWSE, navigate to the sub folder you wish, and open it.

The tracks you wish to play should be there.

A workaround to be sure, but it should get you by until MTU makes a determination on your request.