Ninjatrader signal

There is an indicator that I would like someone to work on for me , It's an ADXV moving average. I would like dedicated signals adding to this indicator. For example: -1 when the ADX MA is moving down; 1 when the ADX MA is moving up; and 0 when the ADX MA is flat. And for the period parameter to have an editable plot. This indicator is fully built; it just doesn't have dedicated Ninjascript signals. Is this something you could do for me? I can attach a text file of the code.