Select the light glyph, or select the light in the Lights in
Model window.
Select the Position grip.
The Position grip is at the bottom of a spotlight and at the
center of a point light.
Drag the light to the new location and click to drop it there.
NoteA spotlight
rotates as it moves to maintain its aim at the target. If you want
to move both source and target, drag the light glyph itself, not
the Position grip.
