Hide or show empty staves on selected systems

Conductor/performance full scores nowadays by default show all instruments/sections at all times, even when empty staves. That is, Flutes 1&2 would show all the time. Now, if at some point Flute 1 and Flute 2 need their own stave in a certain system (e.g. playing very different lines), the Flutes 1&2 would need to hide in this system so that Flute 1 and Flute 2 staves are shown instead. The only way to achieve this as of now, would be to set the Flutes 1&2 to be Hidden > auto (hide when empty) and then add something invisible in every single system to make them show. In Sibelius you can control which staves show in every system, which is quite handy for these cases.