[HELP] How can I edit the way a theme saves infos about items/products on the Database? (MySQL)

Hi everybody, recently I bought “PointFinder” theme here on Envato. I already requested help from theme’s creator, but he said his support is only for features.
As the title says, my question is:

How can I edit the way this theme saves infos about items on the Database? (MySQL)

I need to collect and separate infos about items added by users.

Thanks in advance!!! Have a good day.