I use a plugin as instructed here.
My problem is shown in this image

I cannot display comment numbering excluding child comments as follows:
- Comment
- Comment
- Child comment 1
- Child comment 2
- Comment
- Comment
I don't want to use CSS list-style because it is logically not good practice for paged comment. If using CSS, the number of top comment will return into (1) in every comment page.
Could anybody help me to solve this problem? Any responses are highly apreciated.
Note: the comment setting I use is threaded comment.