Generic bluetooth device GATT database expansion

Hello here,

I use home-made BLE devices for my IoT that use custom GATT attributes for some smartthings.

The doc for the generic bluetooth device specifies:

Channels will be dynamically created based on types of characteristics the device supports. This binding contains a mostly complete database of standardized GATT services and characteristics that is used to map characteristics to one or multiple channels.

Obviously my custom gatt profile is not in the database. Is there a way for me to expand this database with custom bindings for my custom devices ? I haven’t found info on this.

Thank you for your help,

Britaliope