You can add level attributes, such as TOP_LEVEL , BOTTOM_LEVEL , ASSEMBLY_TOP_LEVEL , ASSEMBLY_BOTTOM_LEVEL , and ASSEMBLY.MAIN_PART.TOP_LEVEL , in part marks as user-defined attributes.

1. In an open drawing, on the Drawing tab, click Properties > Dimension.
2. Select MarkDimensionFormat from the properties file list at the top, and click Load.
3. Change the unit, precision and format as desired.

   

4. Click Save to save the changes in the MarkDimensionFormat file, and then click Cancel to close the dialog box.
5. On the Drawings & reports tab, click Drawing properties and select the drawing type.
   
6. Load drawing properties that are as close to the ones you need as possible.
   
7. Click View creation , select the view and the properties that you want to change, and click View properties.
   
8. Click Part mark.
9. In part mark properties, double-click the User-defined attribute element to add it to the mark.
10. Enter a user-defined attribute name in the Mark content - user defined attribute dialog box.

    You can enter the following values:

    TOP_LEVEL

    TOP_LEVEL_UNFORMATTED

    TOP_LEVEL_GLOBAL

    TOP_LEVEL_GLOBAL_UNFORMATTED

    BOTTOM_LEVEL

    BOTTOM_LEVEL_UNFORMATTED

    BOTTOM_LEVEL_GLOBAL

    BOTTOM_LEVEL_GLOBAL_UNFORMATTED

    ASSEMBLY_TOP_LEVEL

    ASSEMBLY_TOP_LEVEL_UNFORMATTED

    ASSEMBLY_TOP_LEVEL_GLOBAL

    ASSEMBLY_TOP_LEVEL_GLOBAL_UNFORMATTED

    ASSEMBLY_BOTTOM_LEVEL

    ASSEMBLY_BOTTOM_LEVEL_UNFORMATTED

    ASSEMBLY_BOTTOM_LEVEL_GLOBAL

    ASSEMBLY_BOTTOM_LEVEL_GLOBAL_UNFORMATTED

    CAST_UNIT_TOP_LEVEL

    CAST_UNIT_BOTTOM_LEVEL

    and/or the following:

    ASSEMBLY.MAIN_PART.TOP_LEVEL.

11. Click Dimensioning in the options tree.
12. Select a dimension rule from the list and click Edit Rule.
13. Select MarkDimensionFormat from the Dimension properties list.
14. Save the dimensioning rule by clicking Save and click Close.
15. Save the view properties clicking Save.
16. Click Save to save the drawing properties, then click OK and create the drawing.