Convert MT4 indicator to JFOREX od DUKASCOPY

I have a perfectly working MT4 indicator (Double exponential Moving average) that i want to convert to a Jforex indicator. Indicatior works well on MT4 without any probs but  i cannot use it in the same way on Dukascopy Jforex as JFOREX in-built DEMA INDICATOR has a limit of 2000 bars 

I need a developer to help me convert my custom DEMA indicator on MT4 into a Jforex Indicator so it can be used on the dukascopy platform also.