Prior to version 3.5 (or thereabouts), WP had a checkbox to select if all uploaded media went into sub-folders of /uploads, named by month and year. If checkbox was unchecked, all media ended up in one folder - no subfolders.
How can I restore that feature? I.e., I want all my media to go into one folder and NOT be further divided into year and month. Is there some easy programmatic way to achieve that? Or is there some reliable plugin to do the job?