I'd appreciate if someone can answer this question: How to program condition B is only true if condition A has been triggered not more than X period ago. I have a buy signal trigger, let's say it is called B, I'd like to have a filter on it to imporve its accurary, so I have another condition, let's say it is called A. I want these conditions to happen in this matter: A happens first, then within say 3 months, condition B also happens, then a buy signal is triggered (i.e., B qualifies as a buy signal). Suppose A happens, but more than 4 months has elapsed, and then B happens, no buy signal. How to program this? Thanks very much!

Thank you, Man! You are good! It works! Another question, in the "Expert Advisor" -> "Symbols" -> "Graphic", how can I place a graphic under an indicator, instead of the price bars. I want to put an up arrow under a moving average crossover point, right now, the program put in right under the price bar when the MA crossover happens. Thanks so much!

OK, I take it as it can't be done. Better to know the harsh reality than wasting my time going down a blind alley! thank you very much!