Sorting selections

[RSJ]

My top level sort includes 'albums', 'items', 'genre', 'album artist', 'composer', 'conductor' and 'folder view'.

For 'composer' and 'conductor', I am only interested in the classical and opera genres. Is it possible to exclude other genres when I select 'composer' or 'conductor'?

I would also like to remove 'albums' and 'items' from the top level sort choices.

Thank you