The
            Logitech® Cordless Rumblepad™ 2 gamepad is supported for games-like
            navigation and control. Follow the installation instructions supplied
            with this device to install and configure it.
         
         Control mappings
            
               
                  
                     
                     
                     
                        | Control | Mappings | 
                     
                        | Button 1 | When orbiting, zooms in. (Press and hold to keep zooming
                           in.) When walking, raises camera as if you are raising your head. | 
                     
                        | Button 2 | When orbiting, zooms out. (Press and hold to keep zooming
                           out.) When walking, lowers camera as if you are kneeling. | 
                     
                        | Button 3 | Toggles between presentation and authoring. | 
                     
                        | Button 4 | Toggles between orbiting and walking. | 
                     
                        | Button 5 (at back) | Tilts
                           the camera. Hold this button down with one hand and use the Right
                           stick with the other hand to change the setting. Press this button
                           again to return to the upright camera position. | 
                     
                        | Button 6 (at back) | Changes the point of interest. Hold this button down
                           with one hand and use the Left stick with the other hand to change
                           the setting. | 
                     
                        | Button 7 (at back) | Decreases navigation speed. Press repeatedly to keep
                           decreasing speed. (The speed appears on the screen when walking.) | 
                     
                        | Button 8 (at back) | Increases navigation speed. Press repeatedly to keep
                           increasing speed. | 
                     
                        | Home | Goes to home (default) view. | 
                     
                        | Mode button | Switches the D-pad and left stick controls (that is,
                           choose which control invokes numbered shots and which one drives). | 
                     
                        | D-Pads | By default, invokes hotkeys
                           1 through 8, set up by the user to go to particular shots. Press
                           the upper part of the D-pad for hotkey 1, up and to the right for
                           hotkey 2, and so on in a clockwise direction around the keypad.(To swap this behavior for
                           that of the left stick, press the Mode button.) | 
                     
                        | Left stick (tracking) | When orbiting, tracks the camera up, down, left and right.
                           When walking, tracks the camera in, out, left and right. (To swap
                           this behavior with that of the right stick, press the Mode button.) | 
                     
                        | Right stick (rotating) | When orbiting, rotates the camera around the center of
                           interest (and keeps focus on it). When walking, rotates the camera
                           but keeps it in one location (as if you are turning your head to
                           look around.) (To swap this behavior with that of the left stick,
                           press the Mode button.) | 
                  
               
             
         User variables
            
            The following user variables
               are available for you to change the behavior of the game controller. 
            
            - SHOWCASE_SWAP_STICKS
- 
                  When
                        set to 1, swaps the behavior of the left stick and right stick as
                        described above.
                      
- SHOWCASE_SWAP_DOLLY_AND_TRACK_UP_DOWN
- 
                  When set to 1, changes
                        the behavior so that moving the left stick up and down zooms in
                        and out (rather than tracks). Buttons 1 and 2 then track up and
                        down (rather than zoom). Moving the left stick left and right continues
                        to track left and right.
                      
- SHOWCASE_SWAP_LOOK_UP_DOWN
- 
                  When set to 1, inverts
                        the movement of the track stick (by default, the left stick) so
                        that up goes down and down goes up.
                      
To add a user variable:
            
            
               - Right-mouse
                  click over the My Computer icon on your desktop. 
                  The System Properties
                     window appears. 
                   
- Click on the Advanced tab. 
               
- Click on the Environment Variables button. 
                  The Environment Variables
                     window appears, with the user variables in the upper pane. 
                   
- To
                  add user variables, click the New button
                  (below the upper user variable pane). 
               
- To change the value of user variables,
                  click the Edit button (below the upper
                  user variable pane). 
                  A value of 1 means the
                     user variable is turned on. A value of 0 means it is turned off.
                   
- Close and open the program. (The program
                  will use the new behavior the next time you open it.)