Dashed lines on left side screen

On my Easel pages, on the left side where I design the carve plans, there is are dashed lines, vertical and horizontal, that form a box approximately 11”x11”, regardless of the sizes I input for my material size. Does anyone know what those are? What they’re for? How to get rid of them?

Those lines are for you machine size. Go to the Machine tab and put in the size of you X-Carve, I use 30" X 30"