Indicate how to remove a light (or list of lights, previously         
selected with Light->Select, when 
Global is pressed).
Scope
Lights cannot contain other objects, so the only option 
for 
Scope is 
All.
When the removed light was the current object,
the current layer becomes the new current object.
Clicking the mouse over the graphic area in the current window
creates a menu with all the lights in the window. When one is selected,
its identification is transported to the dialog and 
Ok is 
automatically pressed. To recover the previous state press 
Undo.