I am trying to mod The Long Road mod. I do have the game unpacked so I have access to the unmodified files. The only thing I did in the EDB was make another "building equestrian" entry and named one " building equestrian_castle" and the other "building equestrian_city" with the convert_to lines for each. I edited the equestrian entries in descr_srtat to match.
What I get for my efforts in the system.log.txt is "[data. invalid] [error] Building load failed as id "equestrian" not recognized" on four entries.
Sorry for the handholding, but to which files in the text folder are you referring?