Centering Clines Within BGA

 Hello experts,

Is there a function that I can use to center only the clines inside the BGA area?

If so how do go I about it?

For instance, what skill code can I use to shove/move single clines or dual clines in between (or in the middle of) the BGA vias?

  - where if there are two clines in between vias, the air gap is 1x or 2x of the trace width.

Below is a simple illustration:

Single cline centered in between BGA vias:

o I o I o I o

Dual CLine centered in between BGA vias::

o IxI o IxI o

Where:

o = via

I = Cline

x = air gap between two clines.

 Note:

In some areas of the BGA, the vias are in-line while in some areas (at the periphery) the via pitch is mixed, that is a combination of 10mm and 8mm  - stagered pitch.

 Thanks,

Eddie