I found the suggestions in this thread helpful when I had created 30 different scenes, but couldn’t figure out how to manually turn on a light. I have rearranged my room organization and scene creation along the lines mentioned in this thread.
http://forum.micasaverde.com/index.php/topic,13642.msg106729.html#msg106729
(My apologies if this link or topic is located elsewhere in this thread. Very little came up on my attempts to search for this information.)