Connect vias to more than two layers on a multilayer pcb

Hi,

I am currently designing a 4 layer pcb and have some nets that I have to route on three layers. Is there any way to create vias that are connected to all three layers?
That would also be needed to create an edge fence around the PCB for EMI reasons, where you would contact all layers with every via in it.
Any way to do that with pcbnew?

In open gl i can simply connect a trace to an existing via at any layer.
So i would just draw the first two traces (placing the via) and then connect the third trace to it.

Thanks, I had not yet discoverd that it works that way.