Zoom meeting registration with pseudonyms

Hi all. I want to set up a zoom meeting that acts like a webinar (I have a pro account so up to 100 is fine). I've worked out that I can send out a registration code so people register if they pay to enter. Given the topic, many people will want to join using a pseudonym. Is there a way to encourage the First name / Last name on the registration form to be a pseudonym, or to encourage people to change their name before entering the meeting? 

Even better, but I'm pretty sure this isn't possible, I'd like them to register with their real name, but then Zoom change it to a pseudonym they choose on registration. (Eg first: John surname: Smith pseudonym: HappyPenguin and then when they join their name becomes Happypenguin).