Is there any way to "parameterise" a report so that when support rep A runs it, it filters only on his requests, and when support rep B runs it, it filters only on her data? The query editor has some date templates such as "<from_thisweek>", and it would be good to have a "logged in rep" or similar token so that I could personalise the report to the rep who is running it.

I've put in place a report that shows reps the requests of a particular priority that haven't been updated for X days, but it currently shows the data for all reps, which is of limited use.