Someone posting questions in the "Beginner" forum is not likely to build a model with dual elevator for some time, and even then you can use the free mix to setup the second elevator on channel 5 or 6.

Of course, the 7C has more than the 6EXA, but comparing it to the 4YF is way off target. The functions a beginner/intermediate Pilot will need are model memory, EPA, Dual rate and Expo, the 6EXA gives you all of those plus a couple of mixes.