In a prior post, "Light Layers - how to transform a space" I wrote about the need for layers of lighting. Setting up lighting scenes is done by creatively mixing the 3 different layers of lights to create drama in your living environment. If you are looking for a soft, intimate scene, the lighting level will be lower, emphasis will be on the accent lights and the ambient light will be dimmed. Task lighting is not necessary for this type of scene. Most electricians' solutions to lighting control have each room equipped with its own set of light switches, with each light group on a separate switch. My preference is to link lights that serve the same function, i.e. all of the task lighting or all of the accent lights. To take this even further, you can link accent lights with other accent lights located within visual range of the room you are located. This creates a connected surrounding environment, thus making you more comfortable. It is easiest to set up these scenes during the layout of the electrical plan. Lighting control systems give us the opportunity to preset multiple lighting scenes that can be accessed at the push of a button. Otherwise, manipulating multiple switches will be required each time you want to set up a scene.
In my opinion, creating lighting scenes is one of the most important elements of design.