I don't think this is possible with the B+ command set, it maybe possible with userlibs though?
One way of doing it is to use SetMenuText menuitem,"" where menuitem is the item you want to remove. This works but a separator appears where the menu item was, so it probably won't be of much use.
One way of doing it is to use SetMenuText menuitem,"" where menuitem is the item you want to remove. This works but a separator appears where the menu item was, so it probably won't be of much use.