Cortona will start automatically when you open a file containing VRML
world. There are two parts of the Cortona window:
The vertical toolbar, which contains buttons used to specify navigation
type in a Virtual City.
The horizontal toolbar, which contains buttons with predefined actions
to change your position in a Virtual City.
For a more detailed instruction on how to use the tools, right click
on the Cortona window and under help, select user's guide. Then select
the appropriate section that contains the description of the Cortona main