In Project Settings > Locations, you have the option to set the Spatial Type to 'On Drawing' when adding Project Location Levels.

With the Spatial Type: Drawing1 selected, clicking the '+' Add Level button will show Add Level options for your Drawing Level.

In the 'Add Level' panel, add a Level Name and select either 'None' or 'On Drawing' under 'Spatial Type'.

With 'Level Name' and 'Spatial Type' filled out, click the 'Save' button.

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Last Updated: Aug-04-22