I tried your .55 Starter Edition download to see how you setup some games in DBGL. I thought that I'd incorporate a couple of the included games and realized a feature that might become needed. An easy way to import and export profiles. I'd copied part of the database.script from the .55SE into my existing database.script after manually editing the values to match my database. This would be tedious with more than a handful.
I know that DBGL has the ability to import Defend profiles, but it would be nice to be able to export and then import DBGL profiles for sharing, distribution, etc. My main purpose would be for archiving games. I already archive all of my floppy games in ZIPs stored on disc and it would be nice to store a profile in the game's archive. This is why I had asked for the ability to have the config file stored in the game's directory.
Perhaps a built in browse function for different paths would be necessary. The import/export would not be so much for the DOSBox settings (although it might be good for a starting place for setting up the game on another machine) but more for the data base for a game. I don't know if this would mean standardizing some fields like category and publisher or if there could be some query from the importer for inexact matches.
It could also prove useful when helping a NOOB to get a game going in DOSBox. I dislike wizards, but it might be good for these people. I could even have profiles for download on my site.