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The first point in the generated polygon is the location returned by GetLocation when used on the object.
Spawn Points
The spawn point is optional (but highly recommended) since . If not placed it should "spawn them outside of LOS", but on further testing this could mean as little as being directly behind the player ("nothing personnel kid").
To if not placed, but to place a related spawn point right click an encounter and select Add Spawn Point. Then place it down. This acts as an "anchor" for the spawn, although obviously one solo monster will spawn right on top of it. Note: There is no way to find these spawn points (or relate them to the parent encounter) since they are essentially just a "location" (they have no independent tag or anything).
These spawn points are invisible in the toolset unless an encounter is selected (since they're not true objects, only existing as part of the parent encounter info). The spawn points can be rotated only using the buttons on the bottom of the toolset (for some reason the only right click option is Delete). The rotation determines the rotation of the creatures that are spawned at that location.
If placed outside of walkable areas, it seems to default back to trying to spawn things as if no spawn point was used (ie; directly behind the player!).
You can copy and paste blueprints (which copy any edits made) and blueprints can update every instance of them by selecting Update Instances under Advanced.
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