I just used oshstencils.com to create a stencil and wasn't giving it much thought, but on inspection realize the stensil includes my test pads. For me these are little 1mm round pads inline on a trace, just someplace to stick a probe on a prototype. My google-fu might be weak, but I can't find anything on how to modify a pad on a footprint to exclude it from the solder mask. I'd prefer to keep the nice shiny ENIG surface on the pads, but of course tinning them isn't the end of the world - so it's a pretty vain concern admittedly. But how do I do it right and tell KiCAD that a pad shouldn't be omitted from the solder mask?