I am doing a BOM that uses a focus fabric. The Blocks have a square in the center using the focus fabric. As this is a Oriental theme I choose a fabric with a Cranes. In order to best show off the Crane in the center square for the 1st BOM I need to change its size from 4.5 to 5 inches. That means I will have to change all the other measurements! Do I just increase everything by 1/2 inch? In this case the center is surrounded by triangles made from 3 inch squares. Do I just use 3 1/2 inch squares?