October 4, 2012
In the pp options you can setup drilling as either separate holes on each face or one hole drilled through from one face.
The option "opposite drillings" allows to choose to keep both holes drilled from each face or merge them as one through drilling.
The option "through drillings" allow to choose whether Polyboard tries to always have drillings on the same face or not.
Hope this is helpful,
All the best,