However, your garage door must have safety sensors and the correct programming buttons on the opener unit. (howtogeek.com)
You can program each button with up to three functions, triggered with a single press, double press, or press - and - hold. (techhive.com)
After painstakingly programming every button, I hopped into a simple map, and found the process of constructing buildings, raising an army and taking the battle to my enemies to be extremely cumbersome. (tomsguide.com)