It is possible to re-signal a Trigger as a shortcut of dragging in additional Trigger instances for signalling.
Access Analyzer | Simulation Events
The Simulation Events window contains a list of Triggers which have already fired. By right clicking on a Trigger that you wish to signal again, you can use the context menu to cause the re-signal to happen.
The image below demonstrates this in action. When a signal is re-signalled, a new copy is made and placed at the end of the signalled triggers list, where it is automatically fired again.