Unless I am doing something wrong, hotspots are not exported to points when saving a pln to dwg.
This is contrary to the following help file which suggests that they should be: http://helpcenter.graphisoft.com/guides/archicad-17-int-reference-guide/interoperability/file-handling-and-exchange/working-with-dwgdxf-files/saving-dwgdxf-files/
I hope many will agree that this is an essential 'wish'. It is essential to the people I work with anyway... Or maybe it's a bug! Or again, I may well be doing something wrong.