BTicino K4003C LED support

Hello! I start to use the bticino switch with zigbee2mqtt and it’s working perfectly… The only thing that I missed is the use of the small blue led even if the switch is off. I saw that someone is using it with the “custom” devices.js but I am using the hassos plugin and I have no idea on how to integrate it for my system!!
Does anyone can help me?
Thanks