When entering notes on the keyboard, it would be nice if, at least as an option, slurs would be automatically ended when skipping a space.
This is how it worked in Sib, and frankly how it works about 99% of the time in real world notation.
Sure you will OCCASOINALLY have a slur over a rest but far less than 50% of the time.
This would save a non-trivial amount of keystrokes when entering music.