The last two posts are correct there is no way to set up a "vacation timer" using an MX980 and URC's lighting control.

With the total control system you can set up a "vacation timer". You just need to set up an event timer under edit special macro's section of the programming software. Once the event is created you use a remote, iPad, or iPhone to turn on or off the timer, select what time you want them to go on and off at, and what days of the week you want the event to occur. It's very simple to set up, done it on a couple of jobs and had no issues.