You can open the gizmo then ctrl-click multiple objects to set they're values; this is good. However, the gizmo applies any field which the cursor touches; if you tab through, if you click in the wrong box, then you're going to blitz your objects (setting them all to the same coordinate for instance) and there's no way to stop it happening even if you realise your mistake because the close button acts as a Confirm, not a Cancel.

Possible fixes:
  • Only set values which the user has modified
  • Have OK and Cancel buttons