I am unable to place any AI Control Zones on my maps.
I select Control Zones and Click on one of them (Territory or Defend, etc) and move the mouse to the place in the map (flat area). The box is visible while moving around but when I click to place it NOTHING happens. It's like this with all Control Zones on all my maps.
What am I doing wrong?
Yes cskiller86 is correct in Editor Settings you need to Have Control zones turned on (visible)
Then you should see a small icon, you can then select it and move to where you want it to be in the map.
With control zones you can select the shape and can expand the size, you assign each A.I. to the Control zone, Animals only work with the Territory one.