You can use the both buttons in the front of the TaHoma DIN-Rail in order to make some settings:

• Press Reset button 5s: Resynchronise the box with the server
• Press Reset button 7s to 11s: Enter change WiFi credential mode
• Press Reset button more than 11s: Enter install pro mode
• Press Reset&Prog buttons more than 8s: Removed WiFi and Homekit configurations
• Press Prog button less than 2s: Pairing actuator
• Press Prog button 2s to 8s: Pairing sensor
• Press Prog button more than 8s when the box is ready to use: Identifying paired devices (wink)