I reverted to a saved copy. I need to know how one declares a layer as a plane.
I deleted everything on each layer except the holes left by vias and multi layer components and am still told I need to delete objects to convert to a plane.
There are no objects left unless holes are objects. I even took all GNDs and blanked the net names so no nets were left as GND on these layers.
Please start by explaining how this is supposed to work.
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
