Importing From Other Lists
To import names into a list, from a previous list, Control-click (right-click) on the destination list. Then, from the drop-down, click on “Import Names From Other List”.
Check on the next popup that the “To List” field shows the name of the list that the names will be imported into.
Then, if the list name in the “Import From List” dropdown is not the list that the names are to be imported from, click the dropdown arrow to the right, and select the correct list.
Finally, click the Import List button to perform the Import operation.