Page Width shortcut
Instead of requesting, this post is to declare that a page-width shortcut has been implemented over here [zoom-level], but with the addition of a suggestion by Marc S. (https://musescore.org/en/comment/967437) to allow the shortcut to toggle between [page-width] and the previous zoom level. At first I wanted to have a shortcut that toggled between [Page-Width, Whole Page, and Two Pages], but then it was thought of as being a little awkward, so some alternative ideas were passed around.
After implementing [Page-Width / Prev Zoom level], it's nice to have a particular zoom level for zoomed-in (closer editing) or zoomed-out (seeing the whole score on user's screen) situations and be able to switch between that and [page-width] quickly with one command.
Hopefully it gets some use by some people if it's accepted. Now just need to make a pesky pull request in the next few days.
Although the idea should speak for itself, why not a screencast