Amazon Echo - Elk Thermostat Control?

I have a VeraLite connected with my Elk M1G through the M1XEP. My Elk has Aprilaire thermostats connected and working fine.
I also have an Amazon Echo connected via HA Bridge to my VeraLite, works fine for lights and scenes.

Has anyone successfully set up Elk connected Thermostats to be controlled with an Amazon Echo?
I would like to change modes: Off, Cool, Heat
I would like to change temperature

Any help appreciated.