Change request for the "Replace instrument..." dialog

I have created a score, and wish to change an instrument, so I double-click the instrument name, and am presented with a dialog titled "Staff/Part properties". Under "Part properties" there is a button titled "Replace instrument...". When I click that, at the top-left is button titled "Family".

After I select a Family, I would like to have it remembered, so when I change the next instrument the family does not revert to "Common". Generally, when working within a family, I want to stay there. Alternatively, you could add the up/down arrows to scroll through the staves, like it does in the dialog above it, so once in a family it would stay there for each staff.