When a field label is clicked in the FieldChooser, it gets selected. It becomes the pivot item for keyboard navigation purposes. Only one field can be selected at a time.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2