If temp2 is more than X greater than temp1 turn on outlet1? (Ecobee)

Smartthings v3 hub, ecobee3 with remote sensors, also have ST sensors available.

I am trying to activate an ST outlet based on a temperature differential between a remote sensor (ecobee or ST) and an Ecobee3 Thermostat.
So far I am not seeing a way to breakout an individual Ecobee Remote sensor, nor am I seeing a way to program for a delta / differential.
I suppose I am a bit underwhelmed.

What am I missing here?

With webCORE?

This is amazing, and exactly what I had hoped for with ST, thank you!