To design your motif for your pattern click the blue see inside button. (above) and go to the sprite's costume and design the motif inside of the black box otherwise the programming will make it overlap. !! IMPORTANT !! THE MOTIF YOU CREATED WILL NOT SAVE Press the full screen button and then press the green flag once your motif is complete!
I learned about motifs and patterns in school in an art class so I made a pattern creator at home. Enjoy! :D