you can't
the field does not exist
I guess that is why that anon was using a sandbox site of some sort (in the links above)
To the Executive Office of the Crown Prince HRH Prince Mohammed bin Salman Al Saud:
If former Senator Biden shows up, don't meet with him. The American people didn't elect him and he doesn't represent us. I realize you'll probably have to send someone to talk to him if he does show up and I'd like to apologize in advance for whomever gets that unfortunate job.
Thank you.
Anon