Question Inter-Server Group Manager userdata sharing database

I need help with figuring out a way to use userdata ( essentials group manager userdata ) from one servet to all the other.
When on the main server ( or if possible on all of then ) someone is given a rank he will be givven that rank on all the servers , without me having to go on each one and type the command to add them in the group. I just do it once for all of them .

Pleae help .