Using Pads 9.2. I've created a new part, but when I click on Pin Properties, the Plane Thermal box is greyed out and won't let me select it. I've got DRC turned off. I had one of the pins associated with copper, but I tried disassociating it and still had the problem.Other components on the board are ok.
What have I done wrong?
Ooops. Problem solved. My internal pad was too small relative to the drill size.