2.1.4.3 Controlling Objects
As an alternative to the viewing modes from the Viewing Toolbar described in previous chapter, you can also use the mouse buttons to manipulate the view and control how objects are displayed in the Graphic Viewer, as follows:
| Mouse Button | Action |
| Click the left mouse button | Select an object |
| Hold and drag the left mouse button or hold CTRL + click left mouse button | Select multiple objects |
| Hold and drag the center mouse button | Zoom in/out |
| Hold and drag the right mouse button | Pan |
| Hold and drag the center and right mouse buttons | Rotate |
Customizing Control Options of the Graphic Viewer
By selecting Tools > Options from the menu bar and choosing Graphic Viewer tab, you can customize the parameters for mouse viewing and rotation control. The Direct Viewing allows you to zoom, pan, or rotate object only by pressing and releasing the mouse button. Continuous Viewing means that the pan, rotate, and zoom action is performed automatically as long as the mouse button remains pressed. Under the Rotation Method you can select whether the object moves in the same direction with the mouse or in the opposed direction. Just try the different options and choose the option you are comfortable with.
