How to add user

Hi, I want to allow my web guy access to my OwnerRez account. On this pricing page https://www.ownerrez.com/pricing it says unlimited users can be added, but I can't figure out how to do that....tried a search and looking through help topics.
Thank you!

We don't have separate users for admin level access yet -- best way to do it is to change your password and give him the main OwnerRez login, then change the password back when he's done.

Ok thank you!