This kind of “painting with pads” seems to be the way to create footprints with GND-zones and vias?
This one is a land patter from mini-circuits: https://ww2.minicircuits.com/pcb/98-pl052.pdf
Or is there a better/smarter way of achieving the same results?
However the hidden THT pads are not compliant with KLC F7.4: “THT pads have incorrect layer settings, missing layer *.Mask”
Maybe the benevolent dictators of the KLC and libraries can make an exception for these kind of RF-footprints??