I am using a sloped roof glazing to represent my standing seam metal roof. It has blank curtain panels with square posts every 24" representing the standing seams. It sits on my regular roof, looks great. I am now trying to put a skylight in, I can fit the window on the roof and it cuts correctly but obviously my sloped glazing system still goes right over it. Is there a way to cut a skylight shaped opening in my sloped glazing?