MediaLibraryPicker not redefine

Topics: General
Aug 13, 2013 at 1:30 PM
Edited Aug 13, 2013 at 1:30 PM
Placement.info
<Match DisplayType="SummaryAdmin">
    <Place Fields_MediaLibraryPicker_SummaryAdmin="Content:after;Alternate=Fields_MediaLibraryPicker_SummaryAdmin"/>
  </Match>
MediaLibraryPicker displays all photos in the admin.

How to display the first photo in the admin or how redefine MediaLibraryPicker?