The function of importing multiple local databases at the same time is required

[maybe-why-not]

The function of importing multiple local databases at the same time is required, and it is difficult to import one by one.

[adityasharad]

Thanks for the suggestion. So I understand what you'd like to do: would you like the ability to import multiple database zips or folders from the local filesystem, or to download multiple databases from Internet sources (like URLs, lgtm.com)?

[maybe-why-not]

Import multiple database folders from the local filesystem.
Now I have dozens of codeql database folders that need to be imported.

[kostasvl]

After seeing this issue (#1445), I thought having more than one DB opened at the same time wasn't supported. So, I removed the existing DB, which allowed me to add another one. However, now it seems I can add more without issues! There is even a "Set Current Database" button.

I was seeing the same UI as in issue #1001, with the same confusing error... You are actually supposed to see the system's directory picker UI.