Creating a setback
Setbacks require a site boundary to exist.
Select your site and click the + button in the Setbacks section of the right sidebar to create a new setback.
Setbacks can be given a distance per side as well as a height. You can press Tab to cycle through the side dimensions, click on the particular side dimension you want to edit, or enter a value into the Distance input in the right sidebar to set all sides to the same value.
When you’re done, press the X or in the right sidebar or press Escape to deselect the setback.
Repeat the steps above to create as many setbacks as needed.
Adjusting the height reference point
If a height is given to a setback, you will see a height reference point when the site is selected.
The height reference point determines the base point for height assigned to setbacks. To move it, click and drag the control point.
The Opacity input in the Envelope section of the Site Boundary sidebar lets you adjust the visibility of the extrusion that is created when height is assigned to a setback.