The Staff label for the player who has multiple instruments

Thank you for letting me know it.

I hope you and your team could review this.
I am sure it will be useful.

This can efficiently resolve my current problem with percussion.

One more thing I did not write in the thread above is the following:
grouping individual percussion instruments is a perfect solution for the first page, but from the second page, it can be horrible because there are too many staves on a page.