If you choose "Create Player Owned" for a trigger and link it to a building or person, it has some... odd effects.
For example, place a Yellow Temple on the map. Link it to a "CPO" trigger, and when Blue prays at the Totem, a Yellow Temple will appear, but... it can only be used by Blue. It works fine in every aspect other than it's appearance. This applies for every building and color, so it's possible to create a Red Spy Hut that's owned and only usable by Green, for example.
This means that every color can gain Yellow's tower range advantage.
This same trick works for Spies as well. For all other followers, the trigger works like it does in World Wide Web. I didn't do much testing here, but I was able to create a Green Spy who was controlled by Blue.
There's also another interesting thing you can do with buildings here: You can force "Neutral" buildings to become visible. They don't actually have appearances, though. They just take their models from other (incorrect) buildings. They appear as follows:
Neutral:
Small Hut - Red War Training Hut
Med Hut - Yellow War Training Hut (Yes, these do upgrade. Every building except the Guard Tower and Spy Training Hut are fully functional.)
Large Hut - Green War Training Hut
War Hut - Green Firewar Hut
Temple - Green War Hut (It might be reversed with the Neutral War Hut. I can't remember.)
Firewar Hut - Green Temple
Spy Hut - Green Balloon Hut (It doesn't work. Followers who enter can never come out unless you Blast them out or destroy the building. Also, more than one follower can be in it at a time.)
Boat Hut - Green Guard Tower
Balloon Hut - Green Boat Hut
Guard Tower - Invisible AoD Model (Occupants become invisible, although smoke is still visible, albeit nowhere near the model. Game crashes if you try to do 1 wood of damage to it.)
It would be really weird to construct a map around this...

