Openfire 4.6.3, without linking with LDAP

Good day! There is Openfire 4.6.3, without linking with LDAP. How to add a subgroup to a group?

As far as I know, Openfire does not have the concept of nested user-groups. When importing such groups from LDAP/AD, they’re “flattened” - for Openfire, they appear as one big group, I think.

Thank you

Some clients support virtual nested groups. Like Spark. if in Openfire you name a group “Company :: Finance”, Spark will show this as
Company
–Finance