From the top menu, select Windows > Toolbars > Mark Drawing.
The Mark Drawing toolbar displays.
In the Xsheet view, select the cell you want to identify. This option is not available in the Timeline view.
In the Mark Drawing toolbar, click one of these buttons: Mark as Key Drawing , Mark as Breakdown Drawing or Mark as In-between Drawing . In the Xsheet menu, you can also select Drawing > Mark Drawing As > Key Drawing, Breakdown Drawing, In-between Drawing, Retake Key, Retake BD and Retake IB.
If you selected Mark as Key Drawing, a icon appears in the cell.
If you selected Mark as Breakdown Drawing, a icon appears in the cell.
If you selected Mark as In-Between Drawing, there is no icon displayed in the cell since it is used to remove a Key or Breakdown marker.