If an Action is created from a Fixlet, then there is a Source Fixlet property in the Action.
Actions can also be created directly without a Fixlet.
So run this Session Relevance first to make sure you are seeing what you expect.
((if (exists source fixlet of it) then (name of site of source fixlet of it) else (“None”)), name of it ) of bes actions whose (name of it as uppercase contains “POLICY” and name of it as uppercase contains “LAYER”)
Then you can do something like the following.
unique values of (names of bes actions whose (name of it as uppercase contains “POLICY” and name of it as uppercase contains “LAYER” and name of site of source fixlet of it = “YOUR SITE”))