Is it possible for a custom indicator called from an expert to show its graphics?

 
I have attempted to call the ZigZag custom indicator from my EA using iCustom, but no lines show.
If this is possible, can the properties be changed - such as color, width, etc.
If it is not possible, and the indicator is placed on the chart, does the code still get executed twice - once for the indicator and once for the iCustom call?
 
Indicator shown in the chart and the same indicator called from EA are 2 different instances.
 
stringo wrote:
Indicator shown in the chart and the same indicator called from EA are 2 different instances.
OK, Thanks for your reply, but is it possible to get the indicator called from the EA to display its graphics?
 
No, sorry. Manually only.
Reason: