Idea Summary
Make it possible to trigger a process with a custom event.

Use Case
If Processes responded to a custom event, then Processes could be triggered by Dynamic Actions.  As an example, then it would be possible to trigger a process from Actions and Row menu items by triggering a custom event upon menu item selection.  This is even more valuable now with addition of “Execution Chain” that allows processes to run in the background.  Otherwise, you need DBMS_Scheduler or definition of APEX automation jobs to get something to run in the background.

Preferred Solution (Optional)
Simply have Processes monitor and respond to custom events.