Mouse button 1 (the select button) is used for selecting container items, and mouse button 2 (the drag button) is used for dragging and dropping container items during direct manipulation. These definitions also apply to the same buttons on any other pointing device.

In addition, a user can press a keyboard key while pressing a mouse button; this is called keyboard augmentation. The only instance of keyboard augmentation defined specifically for the container control is pressing the Alt key with the select button, which starts direct editing of text in a container.

In addition, the container control supports two keyboard cursors that can be moved by using keyboard navigation keys:

• The selection cursor, a dotted black box drawn around a container item, which represents the current position for the purpose of keyboard navigation.

• The text cursor, a vertical line that shows the user where text can be inserted or deleted when container text is being edited directly.

Keyboard navigation consists of the use of the Up and Down Arrow, Left and Right Arrow, Home, End, PgUp, and PgDn keys. If container items are not visible within the work area, navigation with these keys causes the items to scroll into view if the user is not editing container text directly.