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④ Grouping, displaying the current group name and sliding to display devices within the group.Or click to
edit the device in the group, and then the "Add/delete" button pops up.
After clicking the "Add" button, when entering the grouping edit, only the currently ungrouped devices are
displayed for the convenience of viewing the addition
After clicking the "Delete" button, when entering the group editing, only the devices in the current group are
displayed for the convenience of deletion