Each NMMGR screen may have multiple purposes. Some screens
provide menus of items for selecting a subbranch of screens that
you will be moving through. Some screens present a selection of
configured items and allow you to either choose items you want to
modify or add new items to the list. Still other NMMGR screens allow
you to enter data to define configuration values for a selected
item. If running the latest version of NMMGR, some screens serve
more than one of these purposes.
It is not important that you be able to distinguish one type
of screen from another. There are, however, certain basic elements
that are common to all screens that it is helpful to understand.