When your phone is connected to the ROG exclusive accessories, such as Mobile Desktop Dock, Professional Dock, or Gamevice controller, you can assign any physical keyboard keys and both mouse buttons to trigger the specific actions in the game.
For example, clicking left mouse button to fire a weapon and take any movement with WASD keys instead of the arrow keys.
Using Key Mapping not only allows you to simulate on-screen tap gestures but also lets you simulate drag gestures.