Groups are one of the permission system part. It hold users. To create group first you have go to groups list and click create group icon. New group window provided below.
If you click &quat;Save and assign user&quat; after creating group you will see immediately window provided below. Fromt that window you can assign any user you want to new created group.
In order to make group completely functional, next thing you have to do, is assign role to new created group. Role to group can be assigned from group editing window.
Clicking &quat;Assign role&quat; will show window provided below.
Then just select role you want to grant your group.
Deleting group is also very simple process. Just use group list window and click delete icon.