The Camera View toolbar 
		
 let you configure elements of the Viewer window display. 
	 
 lets you select, create, rename, delete, or update a bookmark. For more information see 
		  Creating bookmarks in the Schematic view. 
		  The Ruler option 
		  
 enables you to measure and display the distance between two objects. 
		
To view the trajectory for any animated object, select the object, and click the Trajectories button 
		  
. Expand the Trajectories menu to view the Trajectories menu options. 
		
The 2D Magnifier option 
		  
 lets you lock and magnify the current camera view. 
		
When the Selective Redraw option is activated 
		  
 it refreshes the current scene in the Viewer window without updating the operations in any other window.