As of firmware version 0.435 a backup and restore function has been added to the M1 AutomationBridge.
This will allow you to backup the configuration settings and load it into another AutomationBridge when setting it up.
On the settings page, scroll down to the bottom and there is a button called 'Download Config Backup'. This will backup the settings in the bridge and allow you to download the config to your computer.
When setting up a new bridge, there is a new restore icon at the top right.
You then select the backup file.
Then its uploaded and processed, and confirmed with the following: