title: How to execute a command (macro) in Tera Term, like to toggle DTR and RTS signals?
body: <p>How do I make Tera Term toggle DTR and RTS, or execute any of its custom commands in the Tera Term language (TTL)?</p>
  
  <p>I have an electronics project that uses an FTDI chip as the serial interface between PC and the electronics board.  I need to communicate to the FTDI chip to toggle the DTR and RTS pins, which are set to control various system states.</p>