Removing an instrument staff at a specific place in the score

Hello! I was wondering if I could remove a staff at a specific location in my score. I need to have SATB labels written out on a start of each new section (composition), so hiding all the empty staves isn't really a sufficient solution for me - one part has SA, T & B staffs, while the second composition uses SA & TB. The music I'm transcribing is appended below. Thanks!