1. First press the + sign in the upper right corner
2. Select "Add mood"
3. enter the name of the mood and select an appropriate symbol
4. Select the devices you want to include in the mood
5. Select what the devices should do (in this case, turn off the lights)
6. Press "save" in the upper right corner
There are many ways to create different moods. You can create moods that turn on lights at different levels and associate moods with a motion sensor.