When multiple applications define tool palettes, the Tool Palettes window can become crowded and difficult to use. The concept of tool palette groups allows a user to impose order by logically grouping tool palettes. Only those tool palettes in the currently selected group display. A tool palette may appear in more than one group, and the user can easily switch between groups by using the context menu. An application can also define new groups and query existing ones with the CAcTcUiToolPaletteGroup class.