The loft faces operation generates a solid joining two or more faces. These faces must not be coplanar but need not be related in any other way. The solid(s) associated with the involved faces become owned by the resulting lofted solid, much like stocks and tools are owned by a Boolean solid. The representation of a lofted solid in the Browser is very similar to that of a Boolean solid. At this time, you cannot control how the vertices of the faces are connected as it is automated.