To set the default view rotation:
Click Options 
or and click View.
Click Reset to restore factory defaults for all system options or only for options on this page.
| Reverse mouse wheel zoom direction |
Changes the direction of the mouse wheel for zooming in and out.
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| Zoom to fit when changing to standard views |
Makes the entire model visible in the graphics area when changing to a standard view.
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View rotation
| Arrow keys |
Specifies the angle increment for view rotation when you use the arrow keys to rotate the model.
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| Mouse speed |
Specifies the speed of rotation when you use the mouse to rotate the model or assembly component. To get finer control and slower rotation, move the slider to the left.
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Transitions
Enables animation-like changes to the display of part and assembly documents when you change from one display state to another. You can independently control the following transitions:
| View transition |
Controls the animation when changing from one view orientation to another. For example, from a front view to an isometric view.
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| Hide/show component |
In assemblies, controls the animation when you turn the visibility of selected components off or on.
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| Isolate |
In assemblies and multi-body parts, controls the animation when you isolate selected components.
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| View selector |
Controls the animation when you activate the View Selector. |
Move the slider to adjust the animation speed or to
Off to turn off a specific view transition. When a transition type is turned off, the model jumps immediately to the new display state.
To optimize view display performance, larger models might not show the animation.