Changing a section instrument with Divisi

I exported a file with divisi on section players. I want to change the instrument, but the dialog doesn’t open, if I choose to change the instrument.
Daniel, I can send you the file, but I can’t post it here.

I think (I may be completely wrong) that changing players with divisi is not possible for technical reasons.

Edit: Yes, I found it. It’s not possible to change instruments when there are staff count changes (extra staves, divisi, ossia). You’ll have to do some copy-and-paste.

Would be nice, if this could be added or at least to show a warning, that this is not possible.