## Central functions

With the central functions, multiple channels of the dimmer can be controlled together via shared KOs for ***Switching***, ***Relative dimming***, and ***Absolute dimming***.

When the parameter is set to *On*, the **Central functions** tab appears in each active channel and under **General**.

In the **General** tab, the KOs of a central function are released.

In the respective channel tab, it is then defined which central function should be used for the channel, i.e., whether it should react to the KOs of the central function.