@Bryla,
You might want to retitle this thread “SUGGESTION: Instrument names in score”
to call the Development Team’s attention to its purpose. You can Edit and alter the thread title in your original post.
We will be adding more flexible staff labeling options as we continue to develop the software, so please hang in there.
To find out about how to add another voice to an existing staff (which is what you need to do if you want a bar rest to show in your combined horn staff), see the FAQ thread.
There are some improvements to staff labeling in 1.0.10, but not a completely comprehensive set of options. We will continue to add further improvements along these lines as quickly as we can, relative to the priority of everything else we have to work on.
This is not a priority, and doesn’t need to be treated as one. The existing tools, and I presume the improvements added in 1.0.10 will be more than enough for the time being. I was just curious, that’s all!