Right now its not possible to change the Display Settings or open the Navigation Tooltips while you're in an active Distance or Limit Box panel. It would be great if this was possible, like in the Window, Note and 3-point panel.
Right now when I change the limit box, I jump between Color modes and Perspective/Orthographic view for a clear depth and accurate aligning of the limit box edges. But now I have to cancel/confirm the adjustments every time I want the switch from view.