I would like to show in the ticket overview another column with the help topic. How can I do that?
Thanks for your help
This is not a feature in osTicket at this time.
This thread has directions for most contemporary versions of osTicket.
Alternatively there is the forthcoming "Custom Queues" feature here:
Personally I would just wait for the Custom Queues feature due out in 1.11, or use the feature from github in it's current alpha state.