The XPWR pads look like POGO pads. Generally a board would mate to the VIM3, that board would have the POGO pins that engage the pads. I know of no board for your needs , but a board could be made with perf board or similar. Otherwise, soldering leads to the pads should be possible. The pads would need to be tinned first, then a lead could be soldered to each pad, those leads would go to your remote switch(momentary type, normally open).