<span><a id="lookup_control_details_history">History</a></span> <br><span>Up to three additional lines may be used to display a brief historical record in the details. The number of displayed lines can be adjusted in the settings [6].</span> <br><span>In case of assignments, a checkbox indicates completed assignments. Canceled assignments have no checkbox and other labels are striked through. If the role of an assignee in a meeting part is assistant or supplementary, the checkbox is displayed behind a vertical bar.</span> 