On the 3D View tab, in the Manipulate group, click Middle Button to display a sub-menu with options that are used to set the action of subsequent middle mouse button drag operations on a 3D View. The model displayed in a 3D View can be rotated, panned or zoomed, press the middle mouse button or mouse wheel over the 3D View and moving the mouse.

On the 3D View tab, in the Manipulate group, click Middle button, select Zoom Rectangle from the drop-down list. Identify the volume required to fill the 3D View by holding down the middle mouse button and dragging out a rectangle on the 3D View. The top left and bottom right points of this rectangle define the extent of the zoom rectangle. The zoom operation takes place when the mouse button is released. At any time during the drag, prior to releasing the mouse button, the user can cancel the operation by pressing Esc.

On the 3D View tab, in the Manipulate group, click Middle button, select Zoom from the drop-down list. Allows the user to magnify or reduce the view. The effect is to change the angle of view without moving the eye point. In this mode, hold down the middle mouse button and move the mouse up, away from the user to zoom in, or down, towards the user to zoom out.

On the 3D View tab, in the Manipulate group, click Middle button, select Rotate from the drop-down list. In this mode, hold down the middle mouse button and move the mouse up or down to rotate the view vertically, or left or right to rotate the view horizontally. The initial movement determines the axis of rotation. To rotate about the other axis, release and press the middle button again.

On the 3D View tab, in the Manipulate group, click Middle button, select Pan from the drop-down list. Allows the user to move across the view in any direction. In this mode, hold down the middle button and move the mouse towards the part of the view that the user wants to see.