HOW TO ADD PATTERNS TO BUTTONS
STEP 1: CLICK ON "EDIT" THEN "DEFINE PATTERN"
STEP 2 : RENAME NEW PATTERN TO WHATEVER YOU LIKE
STEP 3: SELECT LAYER YOU WISH TO ADD NEW PATTERN TO AND DOUBLE CLICK IN THE OUTSIDE AREA OF LAYER TO OPEN UP "LAYER STYLES MENU"
STEP 4: GO TO PATTERN AND CHOOSE THE PATTERN YOU WISH TO ADD TO YOUR BUTTON