Reset XForm is a very special beast. It resets all object-level transformations (position, rotation and scaling) and stores their original values in the XForm modifier below the transforms.
As you probably know, there are two ways to apply transformations in 3ds max
- object level transforms reside on top of the stack and only Space Warps can sit higher
- you can have transformations in local space by scaling the mesh or by applying an XForm modifier to keep hem procedural.
It is technically possible to do the same as Reset XForm in MAXScript, but there is no access to the Reset XForm utility so you cannot just call it from your script.