Thank you for your note.
Although it is expected that a NinjaScript change of a global drawing object would not take effect on all charts, I recommend reviewing the sample provided in the following forum post:
My colleague Jim created that sample that demonstrates how to loop through all windows. It then takes all windows that are charts and loops through the ChartObjects to look for a DrawingTool, then finally it checks if the object is a Global DrawingTool. Then you may update all instances of the global DrawingTool - this approach would allow you to change the color and size of the global drawing objects.
Please let us know if we may be of further assistance.
Leave a comment: