World Transform group
New to Particular 2.0, there is a group called World Transform. World Transform is like a set of Transform properties for the Particular system as a whole. These control let you changes the position and rotation of the whole particle system. World Transform changes the camera perspective without moving the camera in the scene. In other words, you don't have to move the After Effects camera to move the particles, which frees you to do a lot of interesting animation.
Particular 1.5 Note: In version 1.5, in order to make the whole particle system rotate, you would need to do the following: Create a Null, parent a Camera to the Null, and set keyframes for rotation on the Null. But sometimes you want to use the AE camera for other movements, so this method wasn't always efficient. The World Transform group was designed in response to user feedback, addressing the limitation in moving the overall particle rendering.
Particular 2.0 Note: World Transform may not be compatible with Physics > Bounce mode. Basically it would be compatible with an infinite floor rotated in Y only, but any other change (position or rotation) will break the bouncing off of After Effects' layers. Or the layers would have to be moved/rotated exactly the same way as in World Transform. Just take our word on this and look for a tutorial that gives further explanation. If you are using the Physics > Bounce mode, then avoid using the World Transform controls since you will get unpredictable results.
X, Y, X Rotation
The Rotation parameters set the movement of the rotation of the entire particle system.
X Rotation rotates the system around a horizontal X-axis, so the particles roll forward or backward. Negative values rotate back and away from the camera, while positive values rotate forwards, toward the camera.
Y Rotation rotates the system around a vertical Y-axis, so the particles appear to swirl left or right around the emitter point. Negative values rotate the particles to the left, while positive values rotate toward the right.
Z Rotation rotates the system around the Z-axis, so the particles tilt left or right relative to the screen. Negative values tilt towards the left, while positive values tilt toward the right.
X Rotation set to a value of -60 (left), and 0 (right).
X Rotation set to a value of 60.
Y Rotation set to a value of -70 (left), and 0 (right).
Y Rotation set to a value of 70.
Z Rotation set to a value of -50 (left), and 0 (right).
Z Rotation set to a value of -50.
X, Y, Z Offset
The Offset controls set the movement of the position of the entire particle system.
X Offset set to a value of -120 (left), and 0 (right).
X Offset set to a value of 120.
Y Offset set to a value of -150 (left), and 0 (right).
Y Offset set to a value of 150 (left).
Z Offset set to a value of -200 (left), and 0 (right).
Z Offset set to a value of 200.