Astroview - View Constraint Tool
Does it work in sculpt mode?
Yes, it supports any mode you are in.
Note: For edit mode, start astroview in object mode and then jump to edit mode again. I have not found a work around, but works using that solution for now.
How does the add-on work?
Simple, you start Astroview in the top viewport header & hit space to change target point. Esc to exit.
What's the difference between this & Center View to Cursor or Orbit Around Selection?
Center View to Cursor/ Orbit Around Selection shifts you out of focus, meaning you are still required to pan the viewport in order to focus on your working point. Astroview locks your view to the target point.