FAQ - Age of Empires 2 Definitive Edition
How to Rotate Gates in Age of Empires 2?
A. You can rotate a gate (stone or palisade) using CTRL + MOUSE WHEEL UP or CTRL + MOUSE WHEEL DOWN
You can customize your own Gate commands hotkeys “Rotate Gate Clockwise”, “Rotate Gate Counterclockwise” by going into Settings > Hotkeys
