Well, I think I my statements were misleading and I'll modify the text of this tutorial accordingly. The steps for what I called Method #2 are identical in how you move from layer to layer. The only thing that's different is how you save things between layers. It's a new GAP approach. So, my apologies for that.
The real difference is what I called Method #3 and I've decided to go ahead and prepare a tutorial on that method. However, it's pretty advanced and I'm not sure if I sure write it out for newbies (that would take a long amount of time) or write it out for the intermediate to advanced GAP users. Wouldn't take as long.
Sorry for misleading you. I'll fix in a bit.
Art