Marks that a property is to be considered an event. Time2HELP tries to classify each property whether it really is an event, but the algorithm currently used is not 100%, therefore it sometimes needs manual help. In the future, when Time2HELP will be able to classify events 100%, this tag will be ignored. The @event tag has no arguments (at least at the moment). Only applicable to properties which "really" are events!
From 1.0.38 and newer, this @-tag shouldn't be necessary to use anymore.