page settings for parts and page fill
It would save a lot of time to have two features on the Page Settings tab:
Save settings for the current combination of parts (displayed instruments). I have to find the optimal settings by trial and error every time I switch between printing the full score and the individual parts.
Automatically find best fit for a requested number of pages. Usually I have a number of pages that is my goal. I want to evenly space the music and not have a partly filled or sparsely filled dangling line. I want to do this at the largest staff spacing scale possible, in other words give up stretch, margin, other spacing before using the scale factor. If I had this feature and it worked well, I wouldn't actually need the one above.