I2C and other Elements not visible in the IOT Platform

I am working on getting back my basic functionality of my design in Anaren Atmosphere.
It used I2C to communicate to several external sensors.
I see that there is an I2C Element in the Element Types page (https://developer.atmosphereiot.com/documents/studioelements/elementtypes.html), but I don’t see this element inside the Atmosphere IOT Platform.
Am I missing something, or will this Element be added in future versions? What about the other Elements not visible in the Platform?

@RMH - We are still in the Beta phase of the new Studio. Not all of the elements have been added in yet. We are working on better identifying them on the Element Types page. You can see the Coming Soon banners now on the individual elements. Thanks