This setting applies to documents being entered into doc-link at the present time. If the check box is cleared, new documents being entered into doc-link will not queue for Retro-Index. If the check box is selected at a later date, new documents being entered into doc-link will queue for Retro-Index. However, the documents that were entered into doc-link when the check box was not selected will not be retroactively queue for Retro-Index.