Serviio in Synology DS213air

Hi Guys, I just got a Synology DS213air and installed serviio.
My PS3 detects the serviio Media server fine with the folders, but obviously they're empty.
I tried to access the media browser but I don't have the password to access it and I read you need to change it in the console, but I also read that you don't have access to the media browser with the free version, which is the one I have.
So my question is, where do I tell serviio to look in other folders for music, videos, etc? Do I need to install serviio on the PC and control it from there? I was hoping I could do this from the NAS.
Thanks a lot
My PS3 detects the serviio Media server fine with the folders, but obviously they're empty.
I tried to access the media browser but I don't have the password to access it and I read you need to change it in the console, but I also read that you don't have access to the media browser with the free version, which is the one I have.
So my question is, where do I tell serviio to look in other folders for music, videos, etc? Do I need to install serviio on the PC and control it from there? I was hoping I could do this from the NAS.
Thanks a lot