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Click Motion > Positioning Modes > Surface Encircle.
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Set or adjust the center point.
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Adjust the eye point (the blue track in the Plan and Elevation views).
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Select a motion type from the Motion > Move menu.
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You can also click Surface Encircle
on the View Menu.
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You can use the Bearing and Elevation controls on the Position Control > View tab to rotate around either the center point or the eye point. Rotating around the center point is the default. To rotate around the eye point, press Ctrl while using these controls.
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You can maintain your current encircle clipping plane settings when you switch from any of the encircle positioning modes back to the lateral positioning mode by turning on the Motion > Positioning Modes > Maintain Encircle Clipping command.
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You can maintain your current lateral clipping plane settings when you switch from the lateral positioning mode to any of the encircle positioning modes by turning off the Motion > Positioning Modes > Clip to Encircle Sphere command.
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You can also use the Home key to cycle through the encircle modes without losing your clipping plane settings. The End key cycles through the directional modes.