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  The_Usual() allows you to zoom from any View to any other View. Zooms
  are often based on relationships, though this is not required. In the
  order entry program AAI, for example, you may zoom from the Customer
  to the Orders file, and from there zoom to the Order Items file. In both
  these cases, the zoom is based on a parent-child relationship.

  You may also zoom from the Order Items to the Products file. In this
  case the zoom is based on a lookup rather than a parent-child.

  You may even set up a zoom between two files which have no relationship.
  In this case, rather than go to the first related record, you'd simply
  go to the current record.

  You might want to set up a datebook file as part of your application,
  for example. You could list it in the Dictionary as a zoom from one or
  more files, so it was accessible wherever in the application you might
  happen to be. (Of course, you might prefer to set it up as a hotkey, if
  you really wanted access from all parts of your program. But you get the
  idea.)