Ninjatrader 8 Strategy programming

I am looking for a coder who can convert an indicator into a strategy fpr long and short orders. The indicator draws different levels which need to be converted to entry long or short. All levels should be taken, latest ones as well as levels far more behind. Difficulty: Historical values should be stored in a data series to be used later on. If a level has been used for a entry, it should not be used later on anymore. Long and Short orders should be possible at the same time. I have the code for the indicator, but I fail at converting this to a working strategy.