So if there is two or more parts that are a combined part of the same instrument like "Flute 1, 2" the 1 and 2 should have a "/" in-between, rather than separated by a comma.
Sure!I was following the IMSLP:Score submission guide/Layout of Work Pages, but this formatting particularity isn't quite clear there.
Its out of date, were not updating any of it until the next website comes I think and hope.