Maximum quotes in one reply

Hy!

Thanks for that great plugin!
I have one problem. One user, write a post in the bbPress forum. Another user write reply, with quote. The frist user write reply (for the reply) with quote and again, again and a after a few post, i have 6 qoute in one forum post.

I thinks that: https://prntscr.com/e3sv12

How can i add the maximum number for the “qoute in qoute”? How can i delete auto the old qoute from the reply without the last?

Thank you!