Code search all repos

Hello to everybody, thank you for gitea.

I am trying out gitea and enabled indexing and search on repos.
This should use up a lot of disc space, but I am not worried yet about that.
Is there an option to get fulltext search on all repos on the “Explore” tab? If there is such an option somewhere else, where can I find it?

Thank you

There is already an issue about that.