Depending on whether you work in a 2D or 3D workspace you can edit all or some of the following viewpoints attributes, including camera position, field of view, speed of motion and saved attributes. All entries are measured in Display Units.
Click Viewpoint tab > Save, Load & Playback panel > Edit Current Viewpoint .
Use the Edit Viewpoint dialog box to adjust the viewpoint’s attributes.
Click OK.
Click Viewpoint tab > Save, Load & Playback panel > Current Viewpoint drop-down > Manage Saved Viewpoints.
In the Saved Viewpoints window, right-click the viewpoint you want to modify, and click Edit.
Use the Edit Viewpoint dialog box to adjust the viewpoint’s attributes.
Click OK.