Would it be possible to get walls for Metallic blocks? I absolutely love this mod so far but I was looking for some cut copper walls for a build, If it's not too much trouble it'd be appreciated :)

No problem! I'll look into it when I get a chance.

Good news! I've submitted version 1.1.0, which adds metal walls, to both CurseForge and Modrinth. The file is up on Modrinth, and should be up in a few hours on CurseForge once its done processing.