Thanks. That (or something like it) worked. On the right side Setup panel I highlighted and right-clicked each trumpet part and at the Player prompt assigned each to Trumpet I. This nulled one of the trumpet entries on the panel and labeled the other as “Trumpet in Bb I & Trumpet in Bb II”. Then the two trumpet parts did indeed show up on different staves on the same page of the new trumpet(s) part – the effect I was after. I must say, though, that it’s taking some time for all of this to sink in.
Thanks, again.
–N