Is there a way to convert an event into an exercise and vice versa? There  are some cases and always will be, probably, where users get them mixed up. Having to create a new event/exercise and re-enter all the information  is a waste of time.

My feeling is that an option at the Editor level, placed in the right-most column of an event/exercise in 'Update Details' mode, where one could switch between the two types, would be a welcome addition.