I am trying to define a six layer board that uses the top two layers for routing on one side of the board, the middle two layers are for power distribution, and the bottom two layers are for routing the opposite side of the board. The two sides of the boards are independent of each other except for power. In fact I hope they are mirrors of each other, except on the different board levels. Reading the manual did not give me enough information to have blind vias come in from both sides (top and bottom) and contact the middle two layers for power distribution. My question is how to define the layers in the DRC to accomplish this.