Hi John --
I always have difficulty understanding the various wikis.
I'm assuming you are referring to "position"? If so, then by specifying values for X, Y, Z the position of load can be moved away from the attachment point built into the mesh? In effect, one attachment point can also be divided into two by, for example, Y = +2 and Y = -2. Correct?
This has interesting possibilities. For example where a locomotive has a non-standard attachment point for a cab. It can then be corrected so that the floor of a substitute cab no longer drags along the ballast. Same with bogeys.
I learn something every day.
Phil