Function
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Rotate the model in the counter-clockwise or clockwise directions relative to GCS Z-axis by moving the mouse leftward or rightward respectively, while holding the mouse left-clicked.
Rotate the model in the counter-clockwise or clockwise directions relative to the horizontal direction by moving the mouse up or downward respectively, while holding the mouse left-clicked.
Call
From the main menu, select [View] tab > [View] group > [Rotate]