This thread covers pretty much every contemporary version of osTicket for how to add columns.http://forum.osticket.com/d/discussion//a-better-ticket-list Keep in mind that: modifying your core source files means you own any changes you make should any undocumented features appear (bugs).Altering your source means that you will have to make the same modification when you upgrade to a newer version.We will tell you to revert to the stock download to receive additional support should you have any other issues as we do not provide support for altered core source files. Side note: once the Custom Queues feature is included, editing the source for this should no longer be necessary.