Publish Multiple APKs to Google Play Store

Question

I was studying Android Developer doc today and found a new topic Multiple APK Support which says that:

Multiple APK support is a feature on Google Play t

Answer 1

Later in the documentation you link, it has a "how it works" section which explains you have to enable Advanced Mode to be able to use the feature:

To publish multiple APKs for the same application, you must enable Advanced mode in your application's APK files tab (as discussed in the previous section). Once in advanced mode, you can upload, activate, then publish multiple APKs for the same application. The following sections describe more about how it works

NOTE The above answer is deprecated. Please refer to the Feb 1 2018 answer by Dhaval Jivani below.