What we can do with BleemSync1.1 editing a few files on the drive.
THIS MOD IS NOT SUPPORTED BY THE BLEEMSYNC DEVS. I MODIFIED SCRIPTS ON THE DRIVE MYSELF TO HAVE THIS RESULT.
Files are available at https://github.com/pascl/BleemSync_Mods
Do backups of your files before modifying them.
Download files from the link (clone/download)
Copy paste on your drive the files in FUNC and SUP/scripts
For folders and rom launchers, some examples can be found in SUP/launchers.
For a description and HOWTO, I will publish another video (or several?) from my PC screen later:
Spliting the PS1 games in folders
Editing an example launcher to create a folder, and to create a rom launcher
Generating automatically an entire set of rom launchers scanning folders