Allow merging of events in Sidebar
Events named by date are generated for each batch of fotos imported. Later, fotos can be moved from one event to others. This is super, but I fancy that this process of organizing fotos can be optimized:
It should be possible to select more than one events (with the usual shift+click or ctrl+click) and merge them into one event. Shotwell may prompt the user for the merged event's name - possibly by auto-opening the "Rename Event..." dialog directly after merging.