Recipients is the same for branded and unbranded mail: pick a whole list or specific members, then see who it is going to on To, Cc and Bcc. Choosing a list fills To. Large lists appear as one chip you can click to show each member. Unbranded extras (typed addresses) go in those same fields, not a separate section. When anyone is on To, Cc or Bcc the send is one email with those headers, using your chosen sender, not a Brevo campaign and not one copy per person. The composer actions sit at the top of the page.