Hide unused buttons

The buttons “Hide if unused” and “Hide all unused” are really good, but I think it would be a great idea if they also hide unused effect columns and note columns…

you pretty much can already, with the track expand/de-expand ( :P ) buttons.

plus if an effect column was blank becuase there was nothing in it, then how could you see it to make it not blank? :D

You can already hide effect columns with the small arrows on the top so this would be no problem.