1) Set a string value in the registry, under HKLM\Software\WOW6432Node\SecTeer\Agent
2) The value name is overrideGroup, the value itself is the name of the group that the agent should be in
3) The agent service must be restarted for the agent to read the value and submit it to the backend
4) The backend looks up the group by name, case-insensitive, and if found, it moves the agent to that group
If no group is found with the given name, then the setting has no effect
If multiple groups are found that match the name, then one will be chosen. Which group is chosen is arbitrary, but consistent (it is the first one, ordered by their uuid)
5) The overrideGroup setting persists in the registry, so if the agent is later manually moved to a different group, then it will revert back to the overrideGroup the next time the agent service starts, unless the registry setting is cleared. This will be altered in a future agent release, so that the agent itself will clear the setting, after sending it to the backend.
Do let us know if you have further questions or experience issues. Bear in mind, that this is a new feature, currently only used by one other customer.