Linking HA sensors to HomeMatic devices

Is it possible to push the state of HA sensors to HomeMatic device channels? I have wired sensors on all my windows and external doors which are visible on MQTT and are accessible as sensors in HA.
As I use HomeMatic IP TRVs and thermostats to control my heating, I would like to use these sensors to control the channel in HomeMatic that is dedicated to their own HmIP window sensor to step-back the set temperature in a room when a window is open.
As I have a lot of windows, it would be very expensive to install these to effectively duplicate what I already have.