My task is to create MACD Divergence indicator with drawing of the arrows and lines on main chart and MACD indicator subwindow.
How can I implement my task and create the indicator with drawing in main chart and indicator subwindow simultaneous?

For my new MACD_Div indicator I set overChart= false.

IIndicatorContext interface has the following method:
IIndicatorChartPanel getIndicatorChartPanel();

It seems that new method can help in my task:
IIndicatorChartPanel getMainChartPanel();

Can you change the API to add getMainChartPanel method to access main chart from the indicator with overChart = false?

An indicator can work either with the main chart or with its own panel. It cannot do both.

I coded under MetaTrader. Now I'm trying to rewrite divergence indicator on Java.
The current JForex restriction does not allow to draw divergence lines on MACD indicator simultaneous with arrows on main chart.

Would you please add

IChartPanel add(IIndicator indicator)

method to

IIndicatorChartPanel interface

similar to

IChartPanel interface

?

One option cold be to create a starter strategy that adds one indicator onto chart and another on sub-window.