[Solved]How to show 25-50 comments per page?

Hey
can anybody guide me?
How to show only 25-50 comments per post/page..
Wordpress.
Like this

Thank you.
Answer #1
http://wordpress.org/extend/plugins/admin-per-page-limits/
Answer #2
^^Thank you
I found simple way
Break comments into pages with top level comments per page and the page displayed by default
wp-admin/options-discussion.php
Thanks again!