I have a polygon shapefile of origin zones. I also have a polygon shapefile of destination zones. I also have a table that lists origin-destination pairs.
I would like to create a multi-part shapefile where each row represents an origin-destination pair. So when you select a single row, two separate polygons would be highlighted (one polygon representing the origin zone, the other representing the destination zone).
I don't know how to go about creating the multi-part shapefile. Does anyone have any suggestions?