Status of value from different node

Is it possible to update a value from a different value/node? It is possible in KNX using the KNX status address, but what about different drivers such as BACnet IP or built-in double variables of ComfortClick?

Example: Using a BACnet driver, there are two values available, Setpoint and SetpointStatus. Setpoint is sent from ComfortClick to the BACnet device and that device replies with SetpointStatus.

How can I display only one control element on the visualization which will send the Setpoint and be updated by the SetpointStatus? Same question for having double variables in ComfortClick, variableB acts as status of variableA.