How to approach this step by step:

Start with windows docking example:

How windows snap, move, and organize in a VR workspace

Core mechanism:

Defining core interaction (MVP):

Hand gestures/tools: Designing your workplace

Interaction rules:

  1. Once selection field is selected, objects are outlined
  2. Select the object with a pointer finger, cursor will follow your finger. Object will move with the crusor
  3. Release the object into space with open palm