I am creating a PCB that mates to another board via three headers. I have created a custom footprint of the other board with pins in the correct places for the headers. So far so good. However, I need the three headers to be part of the PCB for assembly and the BOM. I tried creating components with footprints with dummy headers without pins, just an outline. When I place the component in the schematic and update the PCB, the design pane says the footprint is there, but it is nowhere to be found. I suspect EasyEDA does not support components without pins. I thought about changing the mating board's footprint to not have pins, just outlines for the headers, but that would have the same problem. For now, I am placing three regular headers along with the mating board, but of course, DRC shows PadToPad errors for each pin. This situation is obviously not desirable. Is there any other way to do what I need done? I don't want to just place the headers by themselves, because I then have no guarantee against one of them moving slightly and therefore risk not being able to mate with the 2nd board.