Adding and removing actions (like PlayMaker)

I'm building a custom editor that lets you assign actions to game objects. Everything is working great, BUT, I've run into an annoying problem. Adding and removing actions is a pain in the butt. Right now, I manually add and remove them from a list (each is a c# class). In the editor, the user selects the action they want to use from a drop-down list.

PlayMaker makes it easy to add and remove actions without resorting to putting all of the actions in a list (at least not by hand). Does anyone have any idea how this might be done? I don't really need code, just looking for discussion.

 

How are you doing it right now?

Are you attaching a certain script to the Game Object?
Does that certain script use void OnEnable(), void OnDisable(), to attach/detach delegates/events/actions?

 

Right now, each action has an ID. I have a drop-down list of names that is keyed to IDs assigned to the actions.

I'll look into OnEnable() and OnDisable() to see if I can use these. I think I see where you might be going with this.