Use the study area on the map to identify observations. Once the study area is set, it will query the knowledge graph and update the link chart with the users who made or reviewed those observations. Select the rectangle to modify the query area and deselect it to apply the query.

openCypher Query MATCH path=(A:User) - [] -> (B:Observation) WHERE esri.graph.ST_Intersects($userGeometry, B.shape) RETURN path