To set the duration of the timer, the event should be triggered by a persisted property of type Integer or DateTime.

In the Attributes Panel, select the persisted property you want to use. If the drop-down list of attribute Timeout is empty, you need to create a new persisted property of type Integer or DateTime first. Depending on the type of the property, you have different options to set the timeout:
- Integer: Specify the number of seconds the event has to wait.
- DateTime: Specify an absolute timestamp when the event should fire.