It doesn't store it in a usable database field though, I've already experimented with that. Also even though you use the config editor, when you re-use it a second time it does not populate the data from the config file already edited, and instead loads the "default" values.
At least it does on ours, however I find that making a config editor is only good for some games. Call of Duty, SourceTV, Battlefield, and probably a few others. Source based games though never get used and we used to have one. It became to much upkeep to support every single mod configuration possible - and than people just complain when variable xyz is missing anyways.