Using an indicator data instead of price data : "indicator of indicator"

[[Deleted]]

Hello,

I'm wondering how to use as the "source" the data of an indicator instead of price to apply to another indicator.

Example : a stochastic applied on a moving average, a rsi applied on heiken ashi..etc.

It seems there is no interface user solution, unlike FXCM marketscope for example.

So how to do this in the code ?

Thanks,

Keyrama