In the attached document, the three trumpets change from C to E and then back to C (not all at the same time!). I don't think I have my E trumpets transposed right, though: See mm. 170, 3 mms before...

Right: as Motet points out, I'd have to create one or special finagle it some way, plus no accurate playback, which I need. And I'm now half way through it so I suspect my method is the most...

You mean make the key signature for the three trumpets independent... I suspect my method may, in the long run, be the more time-saving: the instrument name on the left side of the score will need to...

Working on a project where my trumpets change from C to E back to C. I should by rights retain the original notation, even though I'm pretty sure the piece will be played on C's and transposed at...

NG, one last hitch in this: see attached, pg. 4. I've tried reordering the whole page several times, unhiding all staves and then rehiding them, and hiding them one by one. The latter works till I...