When I add saved search with “RT system’s saved searches” privacy as a
superuser to default RT at a glance layout I can not see it there.
Moreover if I try to modify the search options on
"/Prefs/Search.html?name=RT%3A%3AAttribute-58" page I receive empty
page with footer
It works if I change privacy option for the saved search to some
group’s one and add it to the RT at a glance page in my own
preferences. But the goal is to change default layout for all users.