"Fit to Page" and "Fit to System"
Since returning to Musescore from a few years with Sibelius, I have found myself greatly missing the "fit to page" and "fit to system" layout features, so this feature request is to implement something similar for MuseScore.
Fit to page:
To use this, I would select X number of systems, choose the layout option "fit to page", and the page scaling and spacing would be adjusted to force the system to the page I want them on within the existing margin restrictions.
Fit to system:
To use this, I would select X number of measures, choose the layout option "fit to system", and then stretching and note placement would be adjusted to force the measures to the system I want them in. Sometimes it wouldn't fit anyway and I would have to go to the page settings and decrease margins or scale, or change from portrait to landscape but it was overall very useful for the adjustments I needed to make. (Pipe band music is very "systematic" (haha) in it's use of 4 bars per system with few exceptions).