For trading the supply and demand approach i found the following indicators to be userful:

Alerter4U

will alert you, when price is approaching a line/trendline or rectangle

RectangleReader

will extend your rectangle to the right automatically and shows the width of the zone

Symbol and Timeframe

just for better visibility and readings

 

These are free available on forexfactory.

If you like my template, you can download it here (with indicators):

Download Indicators & Template