Problem setting error bar size in multiple trace Error Bar Graph

The users here want to optionally display error bars on graph traces. So I've been experimenting with making the error bars in the Error Bar Graph invisible. Demo vi attached.

I've been able to do this programmatically by feeding zero arrays to the error A an B vector inputs, and setting the Error Bar Size property to zero, but the size property setting only seems to work on the first, or Plot 0 trace. The horizontal error markers stay visible on Plot 3.

Anybody have an answer or know a better way to do this?

I've been able to control multiple cursors in XY graphs using the Cursor List array, but don't see anything of that sort here.

Thanks,

BG