How to change artist name and album name manually?

Hello Everyone,

I want to report a metadata problem. I have some WAV files have no artist name and album information (they are written in file titles). When I import those files. The musics are like this in my screenshot. I could not manage them and they looks messy. (Could not be solved by editting in itunes)

And some music files have locked artist and album information. I could not change them.

Thanks

Hi Tong,
Use an external tag editor like mp3tag to add metadata file tags then tell Roon to prefer file tag metadata.