Feature Request: enable Head Group (notehead shapes) in the inspector for percussion staff

Currently, the Head Group (notehead shapes) is disabled in the inspector with percussion/drumset staves. Please consider enabling it to allow more than one notehead shape per sound. While a better long-term solution may be to enhance the drumset editor to allow this, enabling the Head Group in the inspector seems like a quicker solution since it is already enabled for pitched staves.

For examples of when the Inspector's Head Group would be useful with percussion staves, please check out the posts linking here.