So this may be a bit confusing for me to word, but basically, I am using Wix members to have people log into my site, but I also want to add some new data to the privateMembersData set. Of course, this can't be done. So I thought about having another dataset called "Members Info" and having all extra info in there. The only problem is that I have no idea how to link the privateMembersData table to the Members Info table. So if someone makes an account it would also make a row in the Members Info dataset with the same email linking them together. Then after that, I have no idea how I would say "Ok you the member are using this email, when changing a value in "Members Info" dataset look for the same email and adjust those values not create a new one each time.
Thanks, everyone for the help. Hopefully, I explained this well.