When we do a site drainage plan, we typically place families for catch basins and storm water head walls on the topo surface. These are site components that are hosted by the toposurface. When I check the properties of these items, it reports the item is hosted by the Surface, with an offset of zero.

Is there any way to get these items to report the actual elevation of the toposurface at the location of that element?

My goal here is to ultimately create a Drainage Table schedule that will automatically populate based on what is in the model.