So I tried to install tmodloader by the help of this youtube video But when I copied and pasted the files from the link that he gave on his description to the Finder->Library->Application Support->Steam->Steam Apps->Common->Terraria->Terraria Package Contents(by right clicking the Terraria icon and selecting package contents)->Contents->MacOs->And from there I pasted the files (when I downloaded the tmodloader files from his link it only gave me 8 files but on his video he has 11 files, I selected the mac version for tmodloader).