Attach indicator on another indicator instead of price

[Gtrade]

How to make an indicator use the Close or Open value of another indicator (that is in a separate window) such as a Stochastic or RSI, instead of price?? (in mql4)

Thank you.

[Keith Watford]

Jox90:

How to make an indicator use the Close or Open value of another indicator (that is in a separate window) such as a Stochastic or RSI, instead of price?? (in mql4)

Thank you.

Use iCustom().

Stochastic and RSI have a value, but not open and close value unless you are referring to the applied price.