Introduction - If you have any usage issues, please Google them yourself
wrapped theory
MID :MA(CLOSE,26),DOTLINE,COLORWHITE,LINETHICK1;
UPPER:MID + 2*STD(CLOSE,26),LINETHICK1,COLORYELLOW, LINETHICK1;
LOWER:MID - 2*STD(CLOSE,26),LINETHICK1,COLORMAGENTA, LINETHICK1;