More and more users are leveraging User Group and User List Ownership. In datasources with many project user lists, it is become overwhelming to sift through user lists to find the ones that a given user owns.
Consider adding some display options in the form of checkboxes and/or a pop-up menu as shown in the attached mockup.
Adrian Crowfoot
User suggested to also have a filter in the first column
CDOT has recently asked for this very function