In my piece there are two toms and two woodblocks, but the woodblocks only make a brief appearance at the end. I would like all of these to be in percussion kits in order to have cross-staff notation. If I have two separate kits, one for toms and one for woodblocks, the result is confusing to read because only the toms are listed at the left:
Make two kits: one with just toms and one with both toms & wood blocks (rename instruments if necessary to get rid of the numbering) and make a prudent decision where to switch to the combined kit. That way you will only have one Instrument Change.
I was trying to drag a second drum set into a similar Player rather than create a new one. I encounter this situation a lot when I combine flows and then have to clean them up. Even though I ask Dorico to merge like instruments, I still end up with multiple/duplicate players relatively frequently.
That makes sense, because I had one project in two versions: one on my main computer (with sounds) and one with “muted” playback. When importing the previously exported flows I had to re-arrange most of them to their respective player/instrument and remove the doubled instruments.