Slurs and Hairpins crossing voltas and codas
This has come up in multiple discussions most of which I found concerning slurs and ties and how to make a work around but this should apply to all hairpins and glissandi (if they aren't considered hairpins).
When someone enters a slur or glissando that crosses into a volta or beyond a "to Coda" it should automatically be continued in the next volta or the coda. That is, users should not be required to figure out how to make it look right by entering invisible items such as grace notes or other voices as is currently required. MS is supposed to be first of all a notation software and this is a very common notation that is not currently available to its users.
From a users point of view, the slur/hairpin/glissando in the non-continuous measure should simply terminate at the end of the first note of the non consecutive measure with the option of double clicking or right clicking it to modify its appearance as needed with hairpins such as decrescendos applying to its new span of notes. Slurs should start with an anchor point defaulting to the direction of the slur at the jump and should be able to independently change directions from the other side of the jump. This is very similar to what currently happens at a page break.