If you want to see the quick-views of other users, you probably know that quick-views are also connected to a user group. But every user gets its own (system) group for quick-views. How can you work around this?
Go to transaction SQ03, switch the area to "Standard area / client specific" (Environment->Area) and check "Display system objects" (Settings->Settings). Now you can assign your (or any) user to the now-visible user dependent quick-view groups "SYSTQV<>"