To select features in the model

You can select individual features, or multiple features. Make feature classes selectable to select features within the desired feature classes. Make feature classes unselectable if you do not wish to select them.

To do this:	Use this technique:
Make features selectable	Click to open the Model Explorer. Click the next to any feature class you wish to make selectable. Note: Features in a model are selectable when the is displayed next to the corresponding feature class in the Model Explorer.
Select one feature	Unlock any feature class you wish to make selectable. Set the selection mode. Left-click the feature in the model.
Select multiple features or add features to a selection set	Hold down the Ctrl key as you left-click the features to add. The selection set can include features of different types.
Select all members of a feature class or subset	Right-click a feature class or subset in the Model Explorer and click Select All. Select a feature class in the Data Sources Panel, and click to Select Data Source Features.
Select all features in the model	Right-click in the Model Explorer and choose Select All from the context menu, or press Ctrl + A.
Select all visible features	Zoom to display the features you want in your selection. Click .
Select features within a feature class using an expression	Right-click the feature class or subset in Model Explorer and click Select By Filter. In the Create Attribute Filter dialog box, create an expression to evaluate properties or to specify a location. Click OK to create the selection set. Note: If you create a property-based expression, only the properties for the current feature class are available.
Select features across feature classes using an expression	Click . In the Create Attribute Filter dialog box, create an expression to evaluate properties or to specify a location. Click OK to create the selection set. Note: If you create a property-based expression, only the properties that are common to all feature classes are available.
To zoom to the current selection	Select the feature(s) to display. Click or press Alt + Z.
To automatically zoom to the extents of selection sets	Click and select Automatic Zoom To Selection from the View tab. As long as this option is active, it remains in effect.
Make features unselectable	In the Model Explorer, toggle the padlock next to the desired feature class until it displays for that feature class. Note: Features in a model are unselectable when the is displayed next to the corresponding feature class in the Model Explorer.
Deselect all selected features	Press Esc.
To invert the selection	Click Home Panel Explore panel Invert Selection, or press Alt + I.