Hi Nadine
At this point we do not have the possibility to do this. It would be good to have the option to sort also by Name, Description, Type, Dates etc. Please create an Idea for this so PM can look at it.
What I could suggest if you use folders is to create a separate folder for this user so they can just directly navigate there and use the reports created by them instead of seeing the full list.
Hope this helps -Nika