This node allows you to add new groups, update existing groups. Similarly setup categories and update them
This will bring up the screen where you can add new groups and see the existing groups.
Groups are logical groupings of functional roles. Think "Groups of people" when defining groups. e.g. "Finance" group is for people in finance, "IT" is for people in IT (like DBAs, Sysadmins etc)
Once you click, the group name will be added to the "Group List". The groups are defined in the XXIC_GROUP table