Using the Hole tool I added two holes in opposite corners of my first PCB. One of them happened to go straight through a ground plane (Copper Area) having net name GND. That gave a DRC error saying the hole is too close to the ground plane and not of the same net name. There seems to be no way one can give a Hole a net name.
So I deleted the hole and inserted a pad of the same size, giving it net name GND. That was ok.
But I was just surprised that it wouldn't let me drill a hole straight through a ground plane.
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
