Hi Aeliss,
First a summary for everyone:
Generating a database for Mame will INDEED need the catver.ini & nplayers.ini files to be present in the MAME folder to populate the database entirely.
For all other systems, generating a database from mGalaxy_Runway will simply populate the name and description (which will be the same) from a folder content...but the clone, genre and nplayers tags are still present in the so generated database. It's then up to you to fill it by yourself.
Next, if "Use database if available" is checked in mGalaxy_Runway, the info contained in each tags will be read (for Mame or any other system) and used...if present. So, you'll be able to use the different filtering option in mGalaxy to filter on genre, players, hide clone,... for every systems!!
Concerning your question:
If I understand you well, you've a file built the same way than nplayers.ini...and you would like to use it while generating the database? Is that correct?
Send me a personal message to see what we can do, please!