Tents and Chandeliers
Overall atmosphere and individual sections are created and transformed by fabric and light.

Solution

Continuous, curved curtain tracks allow staff to arrange, gather, illuminate and even suspend custom curtains in several configurations.  Roll-down screens at windows adjusts light and views.  Sectional buffet tables allow for service arrangements which complement the various curtain configurations. 

Tents and chandeliers maximize cost/benefit and ease of arrangement.  No motors or unusual equipment is is necessary, and every environment can be created by hand and with a change in lighting.