In one AB window I have a price chart and an indicator in a separate
“pane” 
(not sure about the terminology).
 
I want to plot a line in the price chart pane that depends on 
the conditions of the indicator below.
 
How do I refer to the indicator? (I hate to think that I have to
replicate 
the code of the indicator in the price chart window and do calculations twice).
 
 
Thanks,
Joseph Biran
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