This just took me a couple of minutes:
Of course, I already have Dorico configured with a few hacks to make this easier.
- Obviously it’s easy to go ahead and set up a Boxed Text Paragraph Style.
- I already have a 1-line non-percussion staff set up in my default. Here’s a thread where custom instrument set ups are discussed.
- I never use the small slash slash notation, so I have my small slash notehead deleted from the Notehead Set. I can apply slash notation, click the small slash property, and then I basically can create a “blank notation” region.
All those above tricks make stuff like this go a lot faster!