Make double-clicking volta in palette get applied to measure's first staff by default, unless user holds control to drop to the selected staves
This is a feature request, but help the user avoid a lot of problems by avoiding having voltas on staves other than the first staff. It seems musescore generally assumes the first staff is the authority on voltas when dealing with parts (both creating parts and keeping parts in sync). So I believe it is much better UI to have default behavior be that staves get put on the first staff (unless user explicitly wants to).
I just implemented PR #291261: Make volta mouse drops apply only to first staff by default, unless user holds control to drop to a specific staff, which deals with mouse drops. However, I think I should also have similar behavior happen when having a range selected in a score and double clicking a volta in the palette. So I'm making a feature request here to ensure that double-clicking will apply the volta only to the top staff of the selected measures, unless user holds control (in which case the previous behavior of the volta being dropped to all selected staves will remain).