Groups helps with configuring objects within a group, eliminating the need to configure each object separately.
To create a group - click "Add".
Enter name for group, assign objects to it and click "Save".
Group will appear in a list, additional buttons will appear when hovering mouse in groups row.
To remove a group - hover mouse over a groups row and then click . Dialog with 2 options will open:
Selecting first option will delete the group. Objects will be ungrouped, but will not be deleted.
Selecting second option will delete the group and move objects to another group or a subgroup that you select from the list.