Edit > Options > File Format Options > fbx > Map scene hierarchy to Fbx hierarchy/Map Fbx hierarchy to scene hierarchy. It makes it possible to transfer scene hierarchy between applications.
Boolean tool is improved. It is faster and more reliable.
Subobject mode > Geometry > Common Command n Tools > Align > Surface Alignment > Offset.
Object hierarchy tree view > context menu > Copy.
File > Open Object Library > Copy.
Library object can be dragged into scene.
3 new basic streamline tools. Generic Tools > Mixed Tools > Paste Object, Paste Object(PositionOnly), Paste Object(RandomOrientation). Paste copied object at snapping point. Drag to scale. 1/2/3 + Drag to rotate X/Y/Z. The source object can be copied in either object library window or object hierarchy window.
Edit > Customize > Tools > Common Modeling Shortcut Tools > Paste Object. Paste copied object onto surface under cursor or scene origin. The source object can be copied in either object library window or object hierarchy window.