m Grouping displays the current group name and slides display devices within the group. When you click to edit the device
in the group, the "Add/delete" button pops up.
After clicking the "Add" button, only the current ungrouped devices are displayed in the group editing for the convenience
of viewing the addition.
After clicking the "Delete" button, only the devices in the current group are displayed in the group editing for the
convenience of deletion.
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