Rotation Settings

Rotation Settings allow you to randomly rotate objects around the global up axis ( Y axis in Unity )
Rotation Settings can be used to add adjustable variation to the direction of objects

Apply Random Rotation - Should random rotation around the up axis be applied to objects?

Max Rotation Degrees - The Maximum amount of degrees to rotate from the original rotation of the object

Noise Settings - The noise settings to use for random rotation

Trees with default rotation
Trees with Random 360 degree rotation