Need PCB Button pinout for HRAP V3 SA


I want to use the small buttons that are on this pcb can someone show me where I can solder wires to these buttons? Anybody got a pinout for this board? Here’s a pic of the board.


Impossible to tell from this picture.
You can see that they all go to vias that connect to the other side of the PCB. You can follow the traces yourself.


There are pinout at this thread: HRAP3 PCB Front and Back


Thanks for the link. With my multimeter it seems that for SW4 the ground is on the right unlike the other buttons.