Show expressions and the expression graph

In Graph Editor mode, the single expression field appears as a resizable box at the bottom of the Graph Editor and shows only the expression for the selected property. To show multiple expression fields simultaneously, the Timeline panel must be in layer bar mode.

To toggle between layer bar mode and Graph Editor mode, press Shift+F3.

To show only properties with expressions, select one or more layers, and then press EE.
To show the expression field in the Graph Editor, choose Show Expression Editor from the Choose Graph Type And Options menu at the bottom of the Graph Editor. When you add a new expression to a property, the expression editor is shown, regardless of this setting.
To resize the expression field, drag its bottom edge up or down.
To see how an expression changes the value or velocity graph, click the Show Post-Expression Graph button while showing the value or velocity graph in the Graph Editor.
The dimly colored graph displays the value or velocity before the expression is applied, and the brightly colored graph displays the value or velocity after the expression is applied. Turning on the graph overlay for the Position property also changes the motion path display in the Composition panel so that you can see the expression-affected path.

You can use the search field in the Timeline panel to search expressions as well as other components of a property. If the search string appears in an expression, the property and its containing property groups and layer are shown in the filtered set of search results.