No, just one checkbox for "filter by domain" or however you would phrase it, and second text input for typing wikipedia or whatever would appear. I know this se

No, just one checkbox for "filter by domain" or however you would phrase it, and second text input for typing wikipedia or whatever would appear. I know this seems like a trivial difference because for us it is, but it means that the functionality is completely discoverable from the UI instead of having to remember how the hidden functionality works. It makes a big difference to less technically literate users.