Adjustable trading bands

[henry1224]

LBK:=N1;
UB:Ref((HHV(LLV(L,N)+ATR(N),LBK)),1),ColorGreen;
LB:Ref((LLV(HHV(H,N)-ATR(N),LBK)),1),ColorRed;
FILLRGN(1,UB,LB),Brush#200000C0;

Under the parameters Tab

N double 10 2 100
N1 Double 10 2 100