Opening Gap Close Strategy - open to bidding

Hi there. This is the simplest of FX strategies but I never got around to got it coded. 1. Position only when the FX market opens on Sunday evening after it had closed on Friday AND 2. creates a gap of minimum of a minimum/maximum size in pips 3. If minimum/maximum criteria are being met, open a position: (need to be able to define the min/max size of the gap) 3a. Short at market immediately after open - if we have a bullish gap (opens to the upside) 3b Long at market immediately after open - if we have a bearish gap (opens to the downside) 4. Target: Gap close 5. SL: Percentage of Gap 6. Need to be able to delay the trade to the second, third etc. candle after market open 6. also add magic number Let me know if you have any questions. Thanks Malte