I dont think I do anything special- but a couple of times now I have completely run out of space on a drawing, so that I cannot complete it. I dont want to post to the advanced board because I dont think Im good enough for it.... I presume on one of my most recent drawings its because I have chosen a canvas size (500x400) that is too big... but I wanted that size to be able to include details, now I have a washy sketch that I cant alter....I only took 15 minutes over it because I wanted to sort...