I have a work for four guitars, one on each of four staves. If I add a hairpin to one part, it also appears in another part:
1.) Select first pitch, then last pitch - it makes no difference if I select the two outer pitches, or if I shift-click to highlight all the pitches; in either case, the pitches on the adjacent staff are not selected/highlighted.
2.) Enter hairpin (with or without mid-point dynamic)
3.) Hairpin(s) appear on two parts
This only happens if the starting dynamic is the same - in this case, both parts are marked piano. Is this intentional? It can certainly save time, but there are many times one part will cresc., while the other(s) remain the same.
I may be missing something (always my default position).
That said, I really like the hairpin-dynamic in the middle-hairpin ability!