Apple Motion 4 - Manual (Page 456)

Axis: A pop-up menu that allows you to choose whether the object spins about the X,
Y, or Z axis. You can also choose Custom, which yields additional Longitude and Latitude
parameters.
HUD showing axis set to the
default Z Axis set to X Axis set to Y
When Axis is set to Custom, additional Longitude and Latitude parameters become
available. These parameters allow the object to spin at an angle (not locked to the X, Y,
or Z axes).
Drag the axis control in
the center of the circle to
modify the longitude and
latitude of the spin.
456 Chapter 9 Using Behaviors