Hello, after trying for days, it was enough to write asking for help to also find the solution: What other users didn’t explain well is that the ID code needed re: point 4 is not based on language in general, but it is related to your own page. So, if anybody else is struggling, you can find the ID of the static page you want translated by checking in the url while editing that very same page in wordpress.
Thank you anyway!
Guido
Thanks @iclyde I sent you an email at the address you provided!
