Honeywell does not have a one click "away" setting. Used in conjunction with the "Away" recipe, you can simply send a text to yourself that establishes an away setting, and then resumes the programmed schedule upon return.
If
New SMS sent matches search
This Trigger fires every time you send an SMS on your Android device that matches a search you specify.
Then
Resume programmed schedule
This Action will set your Honeywell thermostat to resume the currently defined thermostat programmed schedule.
Explore more great ways to automate Honeywell Total Connect Comfort and Android SMS