Displaying certain hidden staves again

I'm working on the layout of my orchestral piece and I've used the "Hide empty staves within systems" option - which does work as intended. However - there are certain places in my score, where I would like to keep the empty staves visible for a few measures despite the instruments not playing. That is, to make it less confusing for the conductor and not to change the instrument layout every system. Is there a way I can unhide specific staves in the measures where I need them to be visible? In short - I don't want the empty staves to be visible for the entire score, only in specific sections - so that they remain hidden again when I want them to be.

Picture 1 - what I get with the "hide empty staves" option

Picture 2 - what I would like that section to look like, keeping in mind that i. e. the string section isn't playing in the next part of the piece, and I would like to keep it visible only until bar 85

Hope to find a way to solve this issue, maybe someone else had a similar problem and knows a way around this, thanks! :)