m18 R2, possible to remap win lock key?

Over time I've developed the habit of using the win key on the right side of the spacebar and the context menu key. When I ordered the m18 R2 it wasn't readily apparent in the product photos that what I assumed to be a right hand windows key is actually win lock. I tried remapping via power toys but I can't identify which virtual key it is, if any. And sampling it doesn't work, obviously it doesn't register as a keystroke. So am I doomed to use an external keyboard during the workday?