I see the parts default (as expected) to Transposed and that you can switch temporary to view (for example) a Bb Trumpet part in Concert via the Edit menu (which I definitely often prefer to do when editing in the actual parts, etc.). I have two small suggestions, however:
It would be helpful to be able to assign (or already have) a key command to switch from “Tranposed” to “Concert” - don’t see this assignable option in Key Commands (?)
It would be very helpful to have some sort of indicator when we’ve switched to viewing the Concert version of a (for example) Bb Trumpet part vs. the Transposed version - right now there doesn’t seem to be any visual reinforcement of the switch (which might prove confusing when working on more intricate scores with multiple key changes, etc.).