Set thermostat group temp with Alexa

I have a group called climate that has all three of my thermostats with in the group. I would like to say “Alexa set climate to 70 degrees” and have it set all the thermostats to that temperature.

I had this working with Alexa and the skill for the thermostats, but have recently moved everything to HA native and using NabuCasa and Alexa media player as to have everything in one place, this is one of the last things I still don’t have working.

Any help would be appreciated, even if just the right terms to google, as I’ve not found anything yet.