in the past ten years I've had so much radiation and chemo that it has left me with permanent chemo brain and I don't always see that well. So here's what I do for ALL my quilt patterns. I draw out the whole block on graph paper usually 4 sq. = 1 in. This makes it big enough that I can see it. I use colored pencil to match the colors I want to use and then I color it all in. Once this is done, I draw the same block using 1 sq=1 in and draw out each block, leaving one sq between each block. I draw the original pattern then add blocks where I want it enlarged. Make sure you color these blocks also. When it's done I stand back and look at it as a whole and make any changes I want. I use this method when I want to change a pattern also. I'm a bit OCD when it comes to designs on being even top to bottom and left to right. Graph paper is cheaper than the "quilters" graph paper. Either way I end up having to tape pieces together.