Liftmaster 371LM (2-Pack) Purple learn button systems (2005-2013) For Purple learn button systems Our basic single-button remote control isn't so basic. It can operate a single garage door or gate, or turn your garage door opener lights on/off. You can also use it as an extra remote control to turn on lights or small appliances inside your home all from the comfort of your car. It features security+ rolling code technology that sends a brand new code every time it is used.