Hello,
Thank you for reaching out!
At the moment there is no possibility to import Modbus maps. However, this does seem like a good idea and will be forwarded to our RnD team.
Thank you for the suggestion!
As for achieving this function, for now, a script could be used, that adds all of the needed slaves and requests to the file /etc/config/modbus_master:
Hope this helps!
Best regards,
DaumantasG