Sorry @silver I didn’t see the question earlier.
Maybe you want to modify the menue and clone the existing ‘Resolve’ appending the logged in user if there is no owner. Untested example:
https://your.ticcket.url/Ticket/Update.html?Action=Correspond&DefaultStatus=resolved&Owner=<loggedInUser>&id=711392
To modify the menue see this thread. You need to determine the loggenInUser in the callback.
Regards.