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In the following example I can filter a list of extended entity data based on the app (ssget "X" '((0 . "INSERT") (-3 ("MYAPP"))))
As an example I would like to find a list of entities that have the DXF code 1005 with a value of "571" attached.
Is there a way to refine the filter further without having to create a selection set and then stepping through each entity in the list?