F5: to initialize the position of the camera.
F6: Camera 3D # 1
F7: Camera 3D # 2
F8: Camera 2D
ESC: to display the menu.
To Control the camera with a mouse
CTRL + Left Button: Move the camera with the mouse
CTRL + Right button or Mouse Scroll Wheel: to zoom with the camera
To Control the camera with the keyboard
Left and right arrows: move the camera
Up and Down arrows: