In depth learning on Scene Configuration can be found in this course in Motive Academy.
Meshes for doors may not always be anchored at a point that is usable for a hinge. This can be mitigated by using the “Anchor” property to define an offset, but it can be difficult to precisely position the Anchor in this case. An alternative is to make the door mesh a child of a “Hinge” game object. The Hinge object can be precisely placed at the point of the Hinge. The Hinge can have a Grabbable that references a Grab Point that represents the Handle for the door.