Stretch staff spacing variably on each page to always stretch to the margin?
For a band piece I'm working on, I want the page layout to look fairly uniform, and as such, I want every page to have the staves go to the margins so there's always the same amount of white space at the bottom of every page. However, I don't see any feature to do this easily; there's a feature for the last-system fill threshold to stretch measures horizontally, but I see nothing for spacing staves to ensure that the margin is always exactly the same.
Added a screenshot for reference; the first page on the left goes all the way down to the 10mm margin, but the page on the right has far too much blank space on the bottom instead of spacing the staves to reach all the way to the margin. Adjusting staff spacing makes some music go off the page, and adjusting the margins only pushes music too close to the margin away from it.