Remove Lighting Group Vertex
To remove a vertex from a lighting group area boundary, go to
Ribbon:
Pulldown Menu:
You will be prompted to draw a bounding box around the boundary vertex to remove.
First crossing point around lighting group vertex to remove:
You will then be prompted to specify the opposite corner of the bounding box.
Second crossing point:
The vertex on the lighting group area boundary that is surrounded by the box will be removed.