Currently if I select many files that have different status (et. paused, stopped, waiting) I often cannot force new option, eg, pause or resume - it is grayed in right-click menu.
I suggest option should be always available, and changes should be applied on all files from selection where it is posiible depending on current status. Optionally after applying there can be popup window shown with messages like "Warning: status of file 'foo' not changed - was paused already"