- 🇺🇸United States rclemings
Most of the above seems to be for v8.x-1.x. In case it helps anybody else, here's how I was able to change the group type for a simple group (no entity references, etc.) in v2.2.1:
1. Create the new group type if it does not already exist.
2. Install the appropriate content plugin/s ("set available content" from dropdown on /admin/group/types).
3. Add/edit group roles ("edit group roles" dropdown) as needed.
4. Set permission ("edit permissions" dropdown) as needed.
5. In database, in the "groups" and "groups_field_data" tables, change "type" field to new type for the relevant group/s.
6. Cross fingers, rebuild cache.