I've been trying to find a solution for this but every single thread that I came across on this forum as well as on Stack Overflow over the past 2 days have resulted in disappointment.
I need to turn the two-step user/site registration process on a Multisite signup page into 1-step process so people can use only one form to register both their username and the site. My field requirements are like this:-
Site Name (I'd also want this field to automatically set as Site Title)
I already copied wp-signup.php into a custom page template and made the standard two-step form work on example.org/signup/ but I'm lost at what should I do to merge the two forms into one. I'd like to go with a method that makes it work (even if it's a non-standard WordPress method) but I'd love to know if there is any way to do this and still stay away from modifying ms-functions.php?