The specific steps are as follows:

1. After entering the game, click the settings button in the lower right corner of the main game interface to enter the game settings interface.

2. In the game settings interface, select the button option.

3. In the button setting interface, click the modify button behind the button icon to reset the function and position of each button.

4. After completing the button settings, click the save button in the upper right corner of the button setting interface to save the settings.