Comment to Comment

I may not understand the translation correctly -- It seems you would like to comment on people's responses in the discussion section of the site/.

if a person posts their thoughts from the home page then others can post comments directly to that posting.

Under discussions you can not but others use @name to make a comment to a specific person similar to what others do in sites such as Facebook when responding to a long string or comments.

So you could respond in the trail of responses below:
@Herb - thanks that is a great idea or
@ Herb - It don't understand what you mean or
@ Herb - you did not translate my question correctly .

I hope my response helps, assuming i translated your question correctly.