While I can change the reporter of an issue in a software project, this seems not to be possible in a service management project when a ticket has been created via the portal.
How to achieve this?
Reasoning: People who are NOT responsible for a problem but want to report it would otherwise be reluctant or not report issues at all anymore. As soon as they report it, they'll be in the loop all the time and some consider them as contact person; which they are not.