The Raw Property Editor plugin allows admins to edit existing or add new properties to users, groups and groupchat rooms.
Copy the rawpropertyeditor.jar into the plugins directory of your openfire installation. The plugin will then be automatically deployed. To upgrade to a new version, copy the new rawpropertyeditor.jar file over the existing file.
Go to users/groups tab of openfires admin panel to edit properies of users and groups.
Go to groupchat tab of openfires admin panel to edit properies of groupchat rooms.