New Command Bar - Creates a new CommandBar with unique default name (CommandBar<N>).
Delete - Delete the CommandBar. If the CommandBar contains tools then a confirmation MessageBox is displayed.
New Menu - Creates a new MenuTool with a unique default name (Menu<N>).
New Menu - Creates a new MenuTool with a unique default name (Menu<N>).
First in group - Marks the tool instance as being the first in a group. It then gets a separator drawn above it.
Delete - Removes the tool instance from the MenuTool or CommandBar.