Locking alliance might do it. Not sure, though. You could also try Scenario - Force Properties - Use Fixed Player Settings when you have the forces set up how you want.
Untitled Trigger 001
Events
Player - Player 1 (Red) changes Shared units settings
Conditions
Actions
Game - Defeat (Triggering player) with the message: DON'T SHARE!!!
I am working on getting access to the old news portal under a different URL for those that would rather use that for news before we get a different news view.
It is OK though for the main page to open up on the forum in the view it was before. As long as the portal has its own URL so it can be viewed that way I do want to try it as a regular forum view for a while
I switched it to a "Standard" article forum. This will show the thread list like normal, but the threads themselves will have the first post set up above the rest of the "comments"