Is there a way of using the generated list of selected attributes 'values' created under the 'attribute accumulation' option of the PointOnAreaOverlayer Transformer to identify if a polygon feature contains the correct number of point features? I have two inputs, a polygon shape file and a point shape file. The polygon shape file contains two area polygons, A and B. Each has a single, name attribute - A and B respectively. The point file contains 30 points and they also have a single name attribute, with attribute values ranging from A to E. Some of these points fall inside the polygons and others do not.As a rule, polygon A must only contain two A points and one E point while polygon B must only contain two B points and one E point. I input both shapefiles into PointOnAreaOverlayer transformer which filters out all points falling outside of the polygons. Within this transformer, I generate an attribute accumulation list on the Area outputs, with the selected attribute set to 'name'. Using listElementCounter, I can see if the correct number of points fall in each polygon - in this case 3. Using ListConcatenator, I can create an attribute listing the names of the points that fall in to the pol
