Draw a shape on the RestrictCopper layer to prevent copper from being routed on specific signal layers in a defined area of your board.
If you want to draw a polygon restrict area, you can use the dedicated Restrict Area command from the Polygon dropdown menu in the toolbar. It places the shape directly on the RestrictCopper layer and includes the Restricted Layers dropdown in its dialog, so you can target routing layers without an extra properties step. For other shape types—rectangle, circle, or wire—use the general workflow below.
You can also convert an existing object into a restrict area by moving it to the RestrictCopper layer, regardless of which layer it was originally drawn on.
Note: Moving an object to the RestrictCopper layer is permanent. Once it becomes a restrict object, it cannot be moved back to another layer or reassigned to a different layer. To change what the restriction targets, use the Restricted Layers dropdown in the object's properties. To remove the restriction entirely, delete the object.