How about saving your template as regular score and then use Save A Copy every time you want a new drumline?

I just wanted to say that we agree that Noteflight doesn’t do a great job on percussion yet — it’s a pretty significant amount of work and our plates are full! However, we are looking into expanding our sound samples to include these instruments as a first step, and we’re aware of the need for specific percussion notation improvements as a followup to that.