I'm concerned that the "k" command isn't working for you. It seems to work for Bert, and it works for me also. You may have to press it several times for the opening to be large enough.
Bert- I'm not able to get MinMaskGap(Selected, 1.5mm) to operate on the vias. I only see it operate on pins.
Dr M- What version of pcb are you using?
I'm concerned that the "k" command isn't working for you. It seems to work for Bert, and it works for me also. You may have to press it several times for the opening to be large enough.
Bert- I'm not able to get MinMaskGap( Selected, 1.5mm) to operate on the vias. I only see it operate on pins.