How come import/export functions are grayed out in Vijeo Designer?

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Issue
Why are the Project Import / Export functions for .VDZ files greyed-out in Vijeo Designer from the File Menu?
File dropdown menu > Import/Export appears greyed-out

Product Line
Vijeo Designer

Resolution
In order to use the Project Import / Export function, you must be in the Navigator Window and in the Vijeo-Manager Tab.
Navigator Window can be opened by selecting 'Tools' then 'Navigator' or with shortcut keys: Shift + F11.
Tools > Navigator window toggle
Here, the Navigator Window appears as well as the contents of the Vijeo-Manager tab:
Navigator window and Vijeo-Manager tab active