Welcome to the forum. I [censored]p you find it useful and we can help solve some of your problems. First. Please define EXACTLY each of your terms. It will help you write your own code, and will help others who might want to help you. You mention you have a background in programming using Java, so you will understand that computers are just dumb machines that will do exactly what you tell it to do. You must be very specific and precise in your instructions else the results may be unexpected. Examples: You said, "moving down". How down? Is there a minimum allowable change? 1%? 10% You said, "last nearest days". How many days? How near must thes days be? You said, "moving toward the lower bollinger band". Moving from where? From an all time high, or just any price outside a boundary? You want a 3% boundary condition. 3% of what? The BBandBottom value? or 3% of the difference of the BBandBottom to the central MA? 3% of the BBandBottom value might place the indictor outside the BB channel! etc etc etc The MetaStock Formula Language is NOTHING like Java. MSFL has its own set of rules. Java is OO, MSFL is not. Forget just about everything you about programming in other languages and start afresh. Work your way through the MS Formula Primer (available free at this forum) and READ THE MANUAL, cover-to-cover, twice! Remember, just like a computer, we cannot help you to code your ideas unless you tell us exactly what you are trying to achieve. I hope this helps. wabbit :D

SaudKsa, Congratulations on your efforts to help yourself. If you need more assistance, please ask. I believe you will get more appropriate responses as you have demonstrated your willingness to learn using the free tools offered by Equis, and others! wabbit :D P.S. Patrick, Perhaps we ought post SaudKsa's repsonse on the very front page, with this bit highlighted, flashing neon, bells and whistles: (sic)