New user - trying to import existing midi files
I've just started looking at MuseScore, and have a lot of midifiles created by a home-grown sequencer, but in close to standard midifile format. MuseScore imports it, but I can't get it to edit any of the attributes. For example, a file with 6 tracks, gets imported as 3 grand staves, and assigned Grand Piano. I can change the instrument after loading, but I can't find a way to split the grand staves. The Import dialog won't let me
edit the instrument, which I thought would suggest individual staves.
Anyone have any helpful suggestions?