A level mark represents the elevation of a point. In addition to the automatic elevation dimensions that you can define in the drawing properties before creating the drawing, and the elevation information in the grid labels added in the model, you can also add manual level marks in your drawing to ensure that the dimensions are correct.

1. Open the drawing.
2. Hold down Shift and, on the Annotations tab, click Level mark.
3. In Level Mark Properties, modify the content and the appearance of the level mark.
4. Click Apply or OK to save the properties.
5. Pick an associativity point for the leader line and a position for the mark.
   The point you can pick depends on the active snap switches.