I am trying to do a 4 layer PCB (The 2nd layer is Ground and 3rd layer is VCC). While I am placing overlapping rooms on top and bottom layers, then after placing the rooms, when I try to move a room on a layer, it moves some tracks and vias on the other layer as well. How to layout rooms / components in multi layer PCB this way? I mean I want to move the room on a layer without disturbing vias and tracks on the other layer.
The RED is the top layer and BLUE is the bottom layer.