3DS Max - Create A Custom Construction Plane

In this video, we will see how we can create our own construction plane,
close to the UCS thing in AutoCad. We will learn also how we can place a construction plane on top of a specific face so that this face's orientation will be the custom construction plane's orientation. In the end, will we learn how we can use this custom grid as a handy modeling aid in complex geometry. Also in this last section, we will deal with the problem when you try to use the Auto Grid on a Polygon that shares the same smoothing group with an adjacent face.