Hi TM

Here are two forms of a simple latch that you can use to capture the state of a trade and from that reduce the buy and Sell signals down to just the active bar of each signal. The revised Buy and Sell signals use the Alert() function to monitor for a change in the Trade variable. Trade*Alert(Trade=0,2) requires Trade to be TRUE for the current bar and FALSE for the previous bar. The reverse applies to (Trade=0)*Alert(Trade,2). I've substituted * for AND and + for OR in these formulas - technically it might not look right but in practice it works fine when used properly, and the advantage is that it economises on space.

{Latch method 1 - Roy Larsen}
Buy:=H>Ref(H,-1) AND Ref(H,-1)>Ref(H,-2) AND Ref(H,-2)>Ref(H,-3);
Sell:=L<Ref(L,-1) AND Ref(L,-1)<Ref(L,-2) AND Ref(L,-2)<Ref(L,-3);
I:=Cum(IsDefined(Buy+Sell))=1;
Trade:=BarsSince(I+Buy)<BarsSince(I+Sell);
Buy:=Trade*Alert(Trade=0,2);
Sell:=(Trade=0)*Alert(Trade,2);
Buy;
Sell;

{Latch method 2 - Jose Silva}
Buy:=H>Ref(H,-1) AND Ref(H,-1)>Ref(H,-2) AND Ref(H,-2)>Ref(H,-3);
Sell:=L<Ref(L,-1) AND Ref(L,-1)<Ref(L,-2) AND Ref(L,-2)<Ref(L,-3);
I:=Cum(IsDefined(Buy+Sell))=1;
Trade:=ValueWhen(1,I+Buy+Sell,Buy);
Buy:=Trade*Alert(Trade=0,2);
Sell:=(Trade=0)*Alert(Trade,2);
Buy;
Sell;

Hope this helps

Roy

Hi TM

General coding principles like this apply to all tools where the formula language is used. There are very few functions that are either unique to or cannot be used in a particular tool. For example, the Input() function can only be used in the Indicator Builder, the "colA" function only in the Explorer Filter and the WriteVal() function only in the Expert Advisor. Almost everything else will work anywhere that you need it.

Roy