If I open S Pen settings (the Pen tool) in S Note, in the title bar, to the left of the X is an icon that looks like a rectangle with a squiggle in it. Hover and it says "Pre-Drawn". Press and you get a pop-up window with a grid pattern. I can write and draw in that little window, but it doesn't seem as though you can save it, cut it etc. What is the point of it? Anyone know?
Screen shot of Pre-Drawn window
Screen shot of Pre-Drawn window