With 6DOF off, positioning the actor is straightforward and intuitive - I use "Drag Dome" set to Primary Hand Trigger + Primary Index Trigger.
With 6DOF ON using Drag Dome prompts "to drag the video please turn off head tracking".
For Drag Dome to continue functioning with 6DOF I would have thought it just a matter of restricting the movements to Yaw and Pitch only (so it's not affecting the 6DOF variables).
(It was also be nice if Drag Dome movement was smoother similar to Heresphere).
As a side note, what is the purpose of the function Passthrough Override 6DOF?
It took me ages to figure out why my 6DOF value kept reverting to a value of 2.