I was setting up Zoho on my domain, and then saw that I need to add all users ^before^ I change the MX records. So I interrupted the step-by-step setup guide to go and add some more users. Now I can't go back to the step-by-step guide, I can't find a link to it nowhere. 

Also, I suspect that you shouldn't make people create all users before changing the MX records - MX records are not at all dependent on the users... am I right?

Thanks!