One thing that's always driven me crazy about your "mixer" is that the "channels" go "high to low", left to right. My pianist brain wants the higher instruments on the RIGHT. Imagine you have an SATB score with each voice part on separate staves (not grand staff). Yet, the mixer would should them, left to right, as S, A, T, B. But certainly pianists' brain would like to see them as B, T, A, S. Can you add an option to allow the user to simply visually flip the mixer over so the higher staves are on the right, the lower ones on the left? This confuses me CONSTANTLY in Finale.