I don't know what the protocol is with creating such groups, but I though this is the ideal community to promote having created this one on groups.io.
All instrumentation brands have their own groups, so given Prema's contributions to the field, I see no reason to not have one for this manufacturer. Please join it here:
https://groups.io/g/PremaDMM.
Prema-specific conversations, development, troubleshooting assistance, file storage for service manuals, fixes, upgrades/modifications, etc. all these can benefit from having their own platform and a dedicated community around.
I think there's a place for a(n admittedly) smaller, more specific community for Prema instruments, as much as this larger community here on "all things metrology" has an obvious role.