GREAT PLANES RealFlight 7, Руководство пользователя

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Zoom Reset-
This menu item resets the view to the default magnification. Alternatively, you
may also press the
Backspace
on the keyboard to reset the zoom to its default
value.
Options Menu-
The Options menu allows you to adjust the behavior of many of the airport editor’s
functions.
Selectable Items-
The Selectable Items menu determines whether a particular type of object may
be clicked and selected on-screen.
To toggle the ability of selecting a type of item, simply mouse click on the
desired listing in the pull-down menu. This is useful when there are many
objects clustered in a small area and you want to select just one of them. For
example, suppose that an airport has a tight cluster of trees with a dirt pile in
the middle and you want to select the dirt pile, it may be easier to first, turn off
the tree selection. This will allow you to easily select the dirt pile without the
trees getting in the way.