Understood, it doesn’t seem that difficult to me, I only asked because there could be some native way in the plugin and that would speed things up here.
Indeed, but there are some technical details which complicate this a lot.
But the main question still remains, is it possible to do this global search on the entire site? Just select all the sources in the plugin’s configuration, is that it?
Yes, sure – you just select all of the sources you want, and that’s it.