I am using select by attributes and then select by location in ArcPro 3.5 to select smaller polygons within a larger polygon (2 separate layers). The relationship I am using in select by location is "have their center in" because it seemed like it was the only one that selected all the polys I needed, until today when one was omitted. I ran feature to point to see where the centroid of each poly was and there is one whose centroid falls outside of the boundary unless I check the "inside" box to ensure the centroid in placed inside of the poly. I've attached an crude drawing of this and I know it's occurring because of the shape of the poly but I need a way to ensure that all polys are included. I didn't catch it until I manually selected all of the smaller polys in the larger one, because the blue highlight made it look like all sides of it were selected since part of it overlaps. I don't think there currently is another relationship that will do this, so I may have to ask for an update to the select by location tool to include that "inside" check box when "have their center in" is the relationship selected in select by location.