I see that Vera's Nest device allows me to run fan mode for a period of time. I'd also like to have to have that same ability in a scene to turn the fan on when certain conditions exist [a temp/humidity sensor in a room other than that of the NEST exceeds a threshold].
Reason:
Cycling the fan would then re-balance the temperature/humidity temporarily -as hot air rises- throughout the house allowing the possibility for the NEST to "hopefully" kick on the AC as needed.
The scene app is lacking the option to run the fan; it only allows access from Vera's Nest device.