In piano-vocal scores I want to have any vocal staves labeled (obviously) but the piano part doesn’t need a label. That can of course be done by renaming it [blank]. But then, on systems where there’s just piano, there’s still an indent on the left to accommodate the empty staff label. I have to set a System Break on every such system and set the Staff Labels: None property, which of course does the job but it’s a lot of manual intervention and it locks up the layout unnecessarily.
Hence this FR: a setting in the Instrument Name dialog that says Show staff label: Never/Always/Follow Options like there is for divisi labeling.