Viewing Rights is the right to view the breakdown of charges on a bill. The default setting is "No Viewing Rights allowed" [参照権限なし].
By individually changing it to "Allow Viewing Rights" [参照権限あり], you will be able to view the breakdown of charges for multiple lines (such as family members) whose have combined bills.
Example: If the father gives himself and the mother viewing rights but does not give the child.
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