nfo file: entering IMDB Movie id yields no result?

Hi,
(new to Kodi)
I come from a Popcorn Hour device and when it couldn’t scrape a movie, the solution was to simply enter the IMDB id (i.e. tt1234567) in a nfo file and that’s it! It would then scrape properly and come up with all the info (plot, rating, poster, actors, etc…).

I see that in the Kodi nfo file, there is a field for the IMDB id but….it does nothing at all?? Is that normal? I mean, what’s even the point of putting the IMDB id otherwise?

Does this mean I have enter everything manually?!
Thanks,
Chumbo