Topic: open image in new window

how do i remove the option to "open image in new window" when an image is right clicked?

accdg to website it is here that it is set:
enableRightClickOpen - Whether to display a 'Open In new Window...' dialog when right-clicking on an image. Can be "true" or "false"

i checked the XML Manager Option and it is set to

public var enableRightClickOpen:Boolean = false;

but the option to open in new window is still there although it is set to false.

Thanks.