Components with a Symbol Footprint

Components that do not have footprint geometry are initially rendered on the Symbol layer. When the component is first wired to an object on a physical layer, it renders on that physical layer.

Circuit Diagram

If the component has any pins wired to an object on a physical layer, a new property called Auto Layer Placement appears. It is populated with all the pins that are connected to physical layers, plus an additional override option: use placement layer.

Properties Panel

When the Auto Layer Placement is set to use placement layer, the PlacementLayer property is editable and users may override the layer placement for the component rendering.