1. COINS Auto Section Box (download)
  2. QuickViewAccess2013 (2013 download) (2012 download)
  3. ZoomToAwesome (download)
  4. Palladio X BIM – WindowsLayout (download)
  5. Ok, its not a view addin, but – set a keyboard shortcut to Isolate Element, and another one to Zoom Extents.  When you want to find and zoom to a selected element, just type the two shortcuts one after the other … Isolate Element then Zoom Extents.