Once the layout is how you want it, load the mat into your machine. Do this by hitting the arrows button on the machine. The mat only loads two ways, with the little cut out at the top or the bottom.
Then hit the continue button in the right corner. It will take you to a page that will let you select the paper, tell you the tools you will need, and get you ready to make the project. It looks sort of like this (my page may look slightly different because I have selected some of my favorite papers ):