I am trying to design a baby quilt for my great nephew, who is due in one month. I want to use 6" and 12" blocks, but can't figure out how to add both sizes using electric quilt. If I set the quilt to 6" finished blocks it won't let me add a 12" that covers where 4 - 6" blocks would be in the quilt. If this makes any sense, and you can help, I would appreciate it. Obviously, I have put off making this quilt as long as I can!