Miscellaneous Category (Pre-defined commands)
This category contains miscellaneous commands that don't fit into any other 
category. Currently all the commands in this category are special dynamic buttons known as 
marker buttons. They are used to mark the place on a toolbar or in a 
menu where commands that come from the system (known as namespace-specific 
commands) should be added. Some folders add toolbar buttons that are specific to 
the folder. For example, the Virtual Machines folder adds buttons to 
create a new virtual machine. In Opus, these buttons will be displayed by the 
marker buttons.
The types of marker buttons are:
  - All Menus: This will display all namespace-specific 
  commands with the one command. 
  
 - Edit Menu: Displays namespace-specific commands intended 
  for the Edit menu. 
  
 - File Context Menu: Displays the Windows-provided 
  context menu items for the selected file or folder. This is used in the 
  File menu by default to display context-sensitive commands for selected files 
  and folders. 
  
 - File Menu: Displays namespace-specific commands intended 
  for the File menu. 
  
 - Help Menu: Displays namespace-specific commands intended 
  for the Help menu. 
  
 - Lister Context Menu: Displays the Windows-provided 
  context menu items for the current folder (not selected folder, but the 
  current location). This is used in the Folder Context menu (the menu you get 
  when you right-click on an empty area of the file display) to display 
  context-sensitive commands for the current folder. 
  
 - Other Menu: Displays namespace-specific menu items that 
  aren't provided by the other categories. 
  
 - Toolbar: Displays namespace-specific toolbar buttons. 
  
 - Tools Menu: Displays namespace-specific commands intended 
  for the Tools menu. 
  
 - View Menu: Displays namespace-specific commands intended 
  for the View menu.