So Far, Warzone Seems To Only Change The Look, How Do I Create Economy Games?

Economy aka Commerce games. Turn it on under armies when creating a game

Where under armies? I can only see the greyed out commanders.
Then:
One Army must stand guard.
rounding mode
Extra armies for territories
Army cap
Local Deployments
No Split mode

Then the list of province bonus values to modify.

just below move order and above commander

you have to be using Unity. On the flash version you can't see that option.