Placeholder for a missing action.
This action is usually generated when the editor can't load an action, e.g., if the script was deleted.
You could also use this action as a TODO note to yourself.
TIP: The realtime error checker lists Missing Actions, making them very easy to find.
NOTE: The original action data is NOT preserved after you save your project! To fix a missing action, restore the action script, then reload your project.
Action Name
The name of the missing action.
