Opencart newsletter edit

we use journl3 theme , journal 3 has a newsletter subscibe list but the issue is those emails are listed in table journal_newsletter in the SQL , when go in marketing/contact and chose newsletter it only send to table customer we need someone to call the journal_newsltter to the contact form so we can send email to them we will pay 25$ for this Which mean , opencart has a system to send emails to customers from , inside this page there is a select box to chose which customers to send to I need add an option called “ journal newsletter “ And when i chose this it , it will send emails to whom subscribed to my site newsletter, which arr listed in table journal_newsletter