3 answers
Here is the article which mentions what you need to create a group -
https://developer.salesforce.com/docs/atlas.en-us.securityImplGuide.meta/securityImplGuide/creating_and_editing_groups.htm
https://developer.salesforce.com/docs/atlas.en-us.securityImplGuide.meta/securityImplGuide/creating_and_editing_groups.htm
