[otrs] Need help setting up average resolution time for tickets report

Can someone show me how to set up an average resolution time for tickets report in OTRS? Regards, ______________________________________ Philip Ng | Technical Support Engineer | Crisp Wireless, Inc. | 386 Park Avenue S, Ste. 1405 NY, NY 10016 | Office: +1 212-557-1850 x. | www.crispwireless.com http://www.crispwireless.com/ This e-mail is intended only for the named person or entity to which it is addressed and contains valuable business information that is proprietary, privileged, confidential and/or otherwise protected from disclosure.