Ok, keep in mind I know enough about this stuff to be dangerous (
) so bear with me here.
When I first boot up calibre after reinstalling it with my libraries already relocated to the D: drive, the Welcome Wizard will run automatically because it will not find a library. So, when prompted, I point calibre to my first library on the D: drive.
To get the next library, do I run the Welcome Wizard again and point to the next library (and same for the third)?