We have released USD for 3ds Max 0.7 which you can get from your Autodesk Account.
Highlights of this release:
- Blendshape Import
- Import support for Animated Camera & Light Properties
- Ability to Select and Move/Rotate/Scale Prims in the Viewport
- Multimaterial Support in Material Switcher for Material Variant Exports
Note that the prim selection/manipulation is implemented in Prim Sub-Object mode of a selected USD Stage Object.
See Release Notes.