You can use the 
		Propagation options () or the 
		Modeling Toolkit 
		Selection Constraints to quickly preview and select a group of components. Instead of filtering components from a selection, these options expand your selection to other components on the same mesh. All options support preselection highlighting, letting you preview your selection before it's made. 
	 
To expand a selection
- Select an object. 
		
 
- Select a selection mode. 
		  
Note: Edge Loop and 
			 Edge Ring options are only available when 
			 Edge component selection mode is on. 
		  
 
		 
- Do one of the following: 
		  
- In the main menu, select 
				 and then select an option from the 
				Propagation drop-down menu. 
			 
 
- In the 
				Modeling Toolkit, select an option from the 
				Selection Constraints drop-down menu. 
			 
 
- Ctrl + Shift + right-click in the scene and make a selection from the 
				Selection Constraints menu. 
			 
 
 
		 
- Move your cursor over the mesh to preview your selection. 
		
 
- Make a selection. 
		  
You can click a single component, or you can select multiple components using Marquee-selection of Drag-selection.