Tags can be used to combine events together or to facilitate search (e.g Project Name, Quote Ref Number, Client Product Ref, etc.). Multiple Tags can be assigned to an event. Tags can be altered or even added at a later stage.
By using the Search field in the upper part of the Calendar View, events can be narrowed down or searched for by using Tags. The search field will suggest used tags in history, once 3 letters are typed in.