When you open a Design Workspace, all projects that are in that Workspace will appear in the Projects panel. The image above shows the default mapping from a 99 SE design database to the equivalent objects in Altium Designer a Workspace is created for the DDB, a PCB project for each folder that includes a PCB file, and a Library Package for each folder that only includes libraries.
During import, you have the opportunity to change all of the mappings, except the DDB to Workspace. While Altium Designer allows direct editing of any individual schematic, PCB, HDL, or any other design file, to perform any project-type operations, such as updating the board from the schematic or printing all the schematics in the project, you must open the project.
