simple skill widgets and dbLayerAnd()

I discovered that it's pretty easy to make interconnections on shapes of wires , especially for example , grids of power wires , when they are part of a list of shapes. 

So I make two lists, one of the lower level metal , the other the upper layer, I then "dblayerAnd()" them together with the format of (cv "vialayer" list1 list2)

but my problem is the vialayer parameter produces mostly rectangles where the AND is satisfied , I then have to use another program to transfer the

resultant rectangles centerBox into the xy coords of an actual via instance - isn't there a way to shortcut this ?  Would I instead of using "vialayer"

make something like dbLayerAnd(cv dbCreateVia(cv techGetTechFile(viaID) centerBox(andArea) "R0" ) ??

thanks.