Meta Trader EA, stop order manipulator

hello, very very easy project here. there are a few EAs floating around on the net that allow you to place a stop order and a limit order and one cancels the other when either is filled (i can send it to you if you wish). HOWEVER, I want something a little bit different. I want to be able to place a stop order OR a limit order (ONLY ONE NOT BOTH) and it gets cancelled when the market hits a predetermined level set by me. So for example, say cable is at 1.62500, I place a sell stop order at 1.62300 (20 pips away) I want to be able to have an EA that will automatically cancel the sell stop order if the market rises to a level I input in advance so let's say 1.62800. So if the market rises 30 pips the order is cancelled automatically. This needs to work for 5 and 4 digit currencies as I trade some exotics which are still in 4 decimal format. Obviously it has to do teh same for buy stop orders, so if the market falls to a price i pre determine it cancels the order. Same for limit orders if possible.