Need for more parts on same sheet

I am working on a complex piece with many musicians: solo singers, mixed choir, strings, organ and percussion. The score is large and unreadable, so editing by parts is a great help. However, now it is only possible to select one part at a time in one graphic view (or I don't know how to select multiple parts in the same view). It would be very useful to be able to select and edit combinations of parts (eg some of the solo singers + female part of the choir + male part of the choir). Can you do it?