老师帮忙修改下 (文华财经WH6赢顺V6.7)

老师好！麻烦你帮我把布林带上下轨隐藏掉，中轨用虚线，谢谢

 MID:MA(CLOSE,26);
TMP2:=STD(CLOSE,26);
TOP:MID+2*TMP2;
BOTTOM:MID-2*TMP2;
A:=REF(C>TOP,1)&&ISDOWN&&C<=TOP;
B:=REF(C<BOTTOM,1)&&ISUP&&C>=BOTTOM;
DRAWCOLORKLINE(A,COLORYELLOW,0);
DRAWCOLORKLINE(B,COLORBLUE,0);