Barbara, I have Quilt Pro. I'm not that good at it but I think if you start off with a quilt block of the size you want you can adjust the size of the quilt by how many blocks you want across and down, So if you make a block and tell the program it is 10" and want to enlarge the whole quilt to king size, you can go back and make the block larger. Hope this helps. n BY the way you can design your own block with the program too.