The purpose of this document is to show how to integrate projects from the file system to MCUXpresso IDE.
It is actually not that complicated as you might have imagined.
The import project(s) from file system option is included in the Quickstart Panel, which is located in the lower left corner of the IDE.
Finally, select all the project folders / examples you want to be imported.
Now, they will be accessible and available from the Project explorer.