I have a schematic that I imported from DxDesigner into PADS, and I have already routed. The problem is that the ground nets got imported with the name $$$1 and not GND, so I am having problems getting them to connect to the ground layer of my board. I have tried to re-import the nets and got the net name to be labeled as GND, but I am still unable to connect to the ground layer (The Plane Thermal option is grayed out for each pad on the footprint). How do I correct DXDesigner to import the correct way or how to I make the change in PADS? I am new to both of these software packages.