This command will add extra text to distinguish a particular logbox data from other logboxes, so that external server tools can parse them. For use in contests, events, etc.
The output will be saved to
%APPDATA%\InterstellarRift\LogboxOutput\LogboxOutput_[system ID]_[ship ID]_[device index].txt
SetLogBoxUserData [ship ID or name] [device index] [extra text you want to be output]
Currently the only way to find out the device index of the logbox is to drop something in it and check the output files, a better way will be provided in the future.