I first tried the potential destroy_building command using the same parameters as the create_building but with no success.

I then tried the same approach as Myrddraal used in his campaign script for the multiple turns - simulating button clicks but there you need to know what the UI element is called. So I'm now looking for the alleged available_ui_elements.txt that may or may not have come with the demo.

But all this, of course, is reliant on the player clicking a showme button which when the trigger is something that's activated by something in the AI's turn brings its own problems.