Export output values of custom .ex4 indicators into an EA to generate trading signals

Hello,

As a market sentiment trader, I bought a lifetime licence of FXSSI.com tools including the following indicators:

FXSSI.CurrentRatio.ex4

FXSSI.Derivatives.ex4

FXSSI.OpenInterest.ex4

FXSSI.OrderBook.ex4

FXSSI.ProfitRatios.ex4

FXSSI.StopLossClusters.ex4

FXSSI.TradingActivity.ex4

(.mq4 versions are not provided)

The suite works perfectly fine on my charts.

Now I am trying to export the indicators' output values in an EA in order to generate trading signals and to backtest strategies based on various combinations of some of these indicators but I can't make it work.

I use iCustom() but it always returns either:

> 2147483647 if indicator is not attached to the chart with the following messages in Experts tab: Indicator is hidden on this timeframe and Array out of range

> 0 (alert sound "timeout" is played) if indicator is attached to the chart with the following messages in Experts tab: indicator is already running and initialization failed(1)

I am clearly missing something but no idea what.

Thanks for your help!