How to do double belt attachments on tails?

I have a large tail with my partial Vanda as seen here:


Right now I only wear it with one belt, but that really isn't enough, especially with me having off and on back issues. So I'd like to add double belt attachments to it. How is the best way to do this?

If anyone could provide pictures I would really, reeeaaally appreciate it. I have a lot of trouble understanding explanations, but if there are not pictures I'll try to pull my focus together.

Thanks!