I would love to have the option add a Layout option to a bookmark and export as a PDF. Where relevant it would be awesome to include the usual items you would expect on layouts/drawings/figures e.g. scale bar, north arrow, grid, date, title, project number, logo etc. I appreciate that a scale bar and grid would not be suitable for a 3D view.
If that isn't possible then adding a Layout option with custom Viewports would also be useful.