Go to the Chargers module and open the Charger Groups tab.

Click Add Charger Group (top‑right).

Fill in Group Name (required) and Description (optional).

Select the Location for the group.

(Optional) Select the Tariff to link to this group.

Under Assigned Chargers, select one or more chargers from the list.

Click Save.

You’ve now created a new group with those chargers and (optionally) a tariff.