I have a checkbox grid available to group administrators that allow them to mass view/change settings for all their users. (Users themselves and their administrator have access to a setting page to change settings for a single user.)
This solution worked great until groups started getting a lot of users and settings. The usability is still acceptable (hovering a table cell highlights the current row and column), but it doesn't look good with this many values.
Is there any better way to make the users' settings readable and editable at a glance? Both names and settings are usually longer than in the example too.