'0': Toggle wireframe/solid
'1': Front view
'2': Top view
'3': Left view
'4': Axonometric view
'r': Reset view params
'w': Rise tip
's': Lower tip
'i': Expand base
'k': Contract base
'j': Rotate CCW
'l': Rotate CW
'a': Slider outwards
'd': Slider inwards
'ArrowLeft': increase theta
'ArrowRight': decrease theta
'ArrowUp': increase gamma
'ArrowDown': decrease gamma