Customizing the metamodel > Keywords for USRPROPS > DEASSIGN
  
DEASSIGN
The DEASSIGN keyword is used for removing symbols from a diagram type.
Example
SYMBOL "Message Flow" IN "Business Process"
{
DEASSIGN FROM "Business Process"
}
This example is equivalent to:
DEASSIGN "Message Flow" FROM "Business Process"
With regard to diagrams with submenus on the Draw menu, this also hides tools from submenus.
See also
Keywords for USRPROPS