Available event types can be configured in Worktime > Administration > Working community settings > Work hours > Event types. 
In this view available event types can be set.
By choosing "When editing events" on for an event type, it will be shown in calendar view when adding or editing an event.
If "Show in planning view" has been activated, the event type in question will be shown in Work shift planning's planning view.
Event types that have "On terminal" activated will be selectable on terminals, current status and in mobile view.
After making changes in the settings, they must be saved by pressing the "save"-button at the bottom of the page.