Sibelius 2022.9 adds an additional way of labeling staff names that effectively allows groups of instruments and individual staves to be named separately, a long-requested feature.
commands
Using commands in plug-ins in Sibelius Ultimate
Sibelius’s Commands feature extends the program’s capabilities in many ways. If you’re willing to dig in a little more, there are some tools available for you to extend it even further by building powerful automations directly within Sibelius.