Hi to all, I make a 4 layer pcb with inner1=1.8VCC and inner2=1.2VCC. When I choose the Auto Router (instead of using vias to connect each component at 1.8VCC or 1.2VCC) it uses tracks to do the connections according to the DRC. Why? Why is not using the inner layers (using vias instead of tracks)? Maybe im not using some configurations?