After using the view icon, how to revert back to what you had originally?

[Anonymous]

After using the "View" icon (to see some of the 3D of some of the ductwork, for example), how do we revert back to what we had originally?  I tried to use the default 3D icon to go back to the original 3D, unsuccessfully, so I wonder if there is another way?

Thanks in advance.

[ToanDN · Accepted solution]

Uncheck Section Box.