This is upcoming. Maybe soon, maybe later. But it is coming.
For now, you can check out how I made my Omniease keyboard layout.
Or, if you are already familiar with my Omniease layout, grab the Texpand Plus app at the Play store—yes, the paid one; no, I don’t get anything by recommending the app—and get familiar with it, to prepare for my upcoming tutorial on how I joined Omniease with Texpand Plus to create the perfect keyboard for Android users who hate to tolerate the limitations of standard cell keyboards—who want the greatest (English-based) cellphone keyboard ever created.