MAME4ALL-PI: How to have multiple directory ROMS

[Usul Pillar]

Hello,

Unlike other émulteurs of RetroPie, MAME4ALL-pi possesses a configuration file that is mame.cfg that contains the path of the directory ROMS

My problem is only one path can be specified as I wish to have several directories to the category of games. But I have not found the right syntax to put in MAME.CFG.

How can I have multiple path directories ROMS for MAME4ALL-PI?
Thank you in advance for your help

[Usul Pillar]

I can instal multiple mame4all-pi directory. One directory for one roms directory. But it’s not a good practice.
Someone have an idea the right syntax to put in MAME.CFG ?

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