Mushroom Card: Ecobee 3 Away Mode

Hi all, I am moving my front end to Mushroom, and I like the overall working of the climate mushroom card. Have an Ecobee 3 in my detached office and would like to adjust temperature for when I am there and not.

Is there a way to set up “Home” and “Away” modes rather than off or on? I would like to keep the building at minimum temperature (45F) on away mode so it doesn’t freeze overnight this winter.

Thanks!