From the top of my head, the best way to achieve this is to create a custom destination, and assign it to a shortcode.
- Create Destination
Applications -> Misc Destinations
Description: Transfer to mrjoe
Dial: ##202# - Create Shortcode
Applications -> Misc Applications
Description: Transfer to mrjoe
Feature code: The shortcode you want to use
Destination: Misc Destinations -> Transfer to mrjoe
I haven’t tested this at all, and you may need to insert a pause before entering the extension there.