Is there a way to make the Expert Advisor to only show the first long/short signal, not all of them? Yes, there is, but it is fairly complex. It requires that your Expert formulas be reworked into what we tend to call a "flip-flop" construction. Here are two samples of this sort of construction: 2 state: bc:=Cross(C,Mov(C,20,S)){buy signal condition}; sc:=Cross(Mov(C,20,S),C){sell signal condition}; trade:=If( bc=1, 1, If(sc=1, 0, PREV)); cross( trade= x, 0.5) 3 state: bc:=C > Mov(C,20,S)+1{enter long condition}; be:=Cross(Mov(C,20,S),C){close long condition}; sc:=C < Mov(C,20,S)-1{enter short condition}; se:=Cross(C,Mov(C,20,S)){close short condition}; trade:=If( bc=1, 1, If(sc=1, -1, If((be AND PREV=1) OR (se AND PREV=-1),0,PREV))); Cross( trade= x, 0.5) You will need to change the Trade=X, in the above formulas to Trade= 1, Trade= -1, or Trade= 0, depending on the condition you are defining. As you can see these are rather involved ... Note: The PREV function used in these formulas is required, and it has the drawback of causing the calculation to be relatively slow.

Another way to get rid of redundant Buy & Sell signals, without resorting to the PREV function: MetaStock -> Tools -> Indicator Builder -> New -> Copy and paste complete formula between "---8<---" lines. [code:1:3325922c2b] ==================== System trade signals ==================== ---8<-------------------------- { System trade signals } { ©Copyright 2005 Jose Silva } { For personal use only } { http://www.metastocktools.com } { Note on simultaneous entry/exit on same bar: #1 Ignore: entry/exit signals cancel each other; #2 Preference given to: new entry if currently Short, new exit if currently Long.} { Signals reference example } entry:=C>Mov(C,21,E); exit:=C<Mov(C,10,E); { User inputs } plot:=Input("Signals: [1]Clean, [2]All, [3]Trade binary",1,3,1); choose:=Input("Simultaneous entry/exit: [1]Ignore, [2]Preference",1,2,1); delay:=Input("Entry and Exit delay",-1,5,0); { Initialize plot } Init:=Cum(IsDefined(entry+exit))=1; { #1 - Ignore entry/exit on same bar } x:=ValueWhen(1,entry-exit<>0,entry-exit); long:=x=1 AND (Alert(x<>1,2) OR Init); short:=x=-1 AND (Alert(x<>-1,2) OR Init); signals1:=long-short; binary1:=ValueWhen(1,signals1<>0,signals1); { #2 - Preference to first entry/exit } long:=entry AND (Alert(entry=0,2) OR Init); short:=exit AND (Alert(exit=0,2) OR Init); binary2:=ValueWhen(1,long-short<>0,long-short); long:=binary2=1 AND (Alert(binary2<1,2) OR Init); short:=binary2=-1 AND (Alert(binary2>-1,2) OR Init); signals2:=long-short; { Select #1 or #2 } binary:=If(choose=1,binary1,binary2); signals:=If(choose=1,signals1,signals2); { Plot in own window } Ref(If(plot=2,entry,0),-delay); Ref(If(plot=1,signals, If(plot=2,-exit,binary)),-delay) ---8<-------------------------- [/code:1:3325922c2b] jose '-) http://www.metastocktools.com