A: Hi there sumoling,
I apologise for repeating this answer.

I am responding to all those who have made this request, which is very popular among sumolongs: at the moment it is not possible for us to add more tiers. However, don't hesitate to contact us at any time for more information!
This obviously depends on your needs. Check out Teyuto's functionality and what it allows you to do, if the tool is right for you, I am sure we will have an answer to all your needs.

Thank you for your patience
I hope you will reach us soon