plotting a zero line

[ddsokal]

how do I plot a zero line in an indicator that has none? example: fisher transform

[NinjaTrader_ChelseaB]

Hello ddsokal,

You would need to modify the indicator. For any system indicators you would need to make a copy of the indicator first.

https://www.youtube.com/watch?v=K8v_2ONBbqI&feature=youtu.be&t=5m33s

You could add the line with the Add() method with a new Line() object.

http://ninjatrader.com/support/helpGuides/nt7/add.htm

The CCI has an example of a zero line:
Add(new Line(Color.DarkGray, 0, "Zero line"));