getting expert name from an indicator

Indicators indicate. Why would/should it know if an EA is on the chart?

You're working at your desk, why would/should you care if the boss is in the room?

@WHRoeder: Just because you have no need for it does not mean that you should ridicule the question. It is in fact a valid query and one that makes sense for many a case.

The fact is that there are "Chart" functions to identify and delete Indicators attached to a Chart. It would make sense that a "Chart" function to identify an EA would also be useful.

@ionone: Unfortunately, it does not seem there is a native function to identify an attached EA, but there could still be a work-around method.

There is a "WindowExpertName", but it only returns the name of its own scope from within an EA, Indicator or Script and not any other attached to the Chart!