## Special functions

Special functions modify the default behavior of a channel for switching and dimming commands.

### Stairway lighting function
The channel behaves as stairway lighting and switches off after a defined activation time.  
When activated, the **Stairway lighting function** tab appears.

### Comfort functions
The channel can be configured for *Wake-up light* or *Sleep light* behavior.  
*Wake-up light* gently increases brightness in the morning.  
*Sleep light* is used for soft fade-out before sleeping and can serve as a nightlight with delay.  
When activated, the **Comfort functions** tab appears.