OFDM is a language created in BYOND. Its a fairly simple language, and it comes with an extensive help file. Recently added was better keyboard support. It now supports the number pad, as well as the letters A-Z. The key codes for the number pad is documented in the help file, and the codes for A-Z are simply their ASCII values. The ASCII values are not listed in the help file, but there is a function in OFDM to return the ASCII value of a character.