Zoom Docs Breakout Room Sharing and Editing

Hi All, 

I have tried to share editable Zoom docs or whitboards into breakout rooms, but am unable to.

Is it possible to have breakout room participants edit a shared whiteboard or Zoom documents in breakrooms. My hope is that they can edit the whiteboard or doc, those edits are seen by others in different breakout rooms and then we can discuss the shared docs or whiteboards in the main room after. 

The option to share whiteboards and docs to breakouts are greyed out when I try. 

Please let me know if this can be done and how.