instrument names not changeable

I have as score for choir in Musescore 4.4. I want that the sounds are always piano. After I change the instrument to Piano I can change the name on the score back to eg S,A,T or B. The problem is that on the mixer panel the display name of the staff (eg "S") is not changeable. So I have 4 instruments all called "piano" instead of a name I can choose.

I propose a change in this so that eg we have a score for 4 solists, we can have the name of the solist in the mixing panel.
eg in the mixing panel under the field "name" showing also the display name (long and short) of the staff.