
The Disable command will disable the menu item or command located
in the current row for the User Mode indicated by the column
currently occupied by the highlighter.  A disabled selection is
not displayed on the corresponding menu or command list.

A disabled option is indicated by the presence of a marker
("////////") in the appropriate row and column of the table.  To
re-enable an item, use the Enable command.  Use the Password
command to force the use of a password when selecting an item. 

