[amibroker] Please help in my formula

[Vinay Gakkhar.]

Can anyone please help me? I have the following formula: Plot (C, "Close", colorBlue, styleThick, Null, Null, 0); CPct0 = (C-(Ref(C,-1)))*100/(Ref(C,-1)) ; PlotShapes( IIf( CPct0 >= 4, shapeHollowUpArrow, shapeNone ) , colorPaleGreen ); PlotShapes( IIf( CPct0 <= -4 , shapeHollowDownArrow, shapeNone ) , colorGold ); This gives me arrows after my condition of CPct0 >= 4 or CPct0 <= -4 is met. What should I change so that I get TWO arrows - the first arrow one bar before my condition is met, and the second arrow 10 bars before my condition is met. Thanks, and regards, Vinay Gakkhar