Great question. Our system is primarily built for individual agents.
Feel free to vote up this idea here: https://rezora.ideas.aha.io/ideas/RMS-I-7
Also, we suggest a work-around. In the My Profile section, add your group name instead of first name last name. Use your group email, phone, etc.
You may also wish to reach out to your marketing team to see if they could provide you with a template-specific solution by using a custom footer.