Smart Controls let you quickly view and adjust the most important parameters of the selected track, without opening the Mixer or individual plug-in windows. Each Smart Control features a set of screen controls. Adjusting a single screen control can modify one or more channel strip or plug-in parameters for the track.
Smart Control inspector: Choose a different layout, view existing mappings, map screen controls to parameters, and assign hardware controllers to screen controls.
Screen controls: Visual controls that modify aspects of the sound of the track. Each Smart Control has a set of screen controls optimized for the type of track or instrument. Screen controls are labeled to make their functions easier to understand.
Do one of the following:
Click the Smart Controls button 
in the control bar.
Choose View > Show Smart Controls.
Choose Window > Open Smart Controls.
For information about working with Smart Controls, see Smart Controls overview.