GREAT PLANES RealFlight 7 User Manual page 168

All objects are grouped according to their root directory. Within the root directory, the
grouping is further refined. For example, you will find all available benches in the
Benches, Chairs, and Tables group. This, of course, assumes that you are utilizing the
Product, Type, or Name as determined by the Add Object Grouping Selection in the
Options menu.
Each object group is preceded with a [+] (plus) and an icon. The [+] (plus) indicates
that there is another expansion level, or selection, available to you. Clicking on the [+]
(plus) or double-clicking the respective root directory name (e.g., RealFlight 7) will
bring forward the pull-down menu of the items contained within the specified folder.
For example, if you wanted to add a bench to the current airport, take the following
steps:
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