$1911

Twice now, I have been working diligently on an alpha pattern, only to click a square while I'm unknowingly on "fill mode" and it fills in every square, which causes me to have to start all over. I hope I'm not the only one who has done this, for if I'm not, I think there should be an "undo" button on the alpha generator, or even a "save" button, so you can save your progress as you are working and can come back to the pattern later.

that would be great!!! on both alpha and regular! right now i just leave the page as is and open a new tab on my computer, so i can come back to the pattern i'm working on, but having too many tabs/windows open can really make computers slow. so that would b great!!!