Vias are define id technology file. That said you can create your own via variant and save it in there. If you use Cadence version 6.1.xx you can save via variant in the create via menu ( leHiCreateVia() )
The best way to start also to set log filter to show all and use what is in there.
Another way would be to create your own skill routine which would draw rectangles to make required via. You would not have connectivity though.
Also I think there is possibility to set how many cut via has in VXL. I would recommend to create new via variant if you are using it all the time.