Tom's suggestion is super. That's all I need for my task at hand.
Collapsed renamed Comments works well, too.
For the "Note" attached to an Action to be useful (as I envision using it) it must be more readily retrieved. Perhaps a thin circle around the gear icon to indicate that there is a note attached to that Action, and then display the text of the note like a ToolTip when the mouse curser hovers over the gear icon?
I make no pretense of having thought this through 
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