I got a new project at work to recreate a board that was made long ago by an ex employee. The board has pads on the top layer that connect directly to an external sensor. Traces on other layers of the board go directly under the pads and via up to the pads. If you look at the board, the top of the board shows circular pads, and the bottom of the board shows small via holes directly under the pads. Is there a way to make footprints that do this? When I try doing a via to a pad in layout, it doesn’t allow it. If this is not doable, can I just make vias that have plating on just one side?