Blogger Threaded Commenting
Blogger has just announced the much awaited feature “Threaded Comments For Blogger” last day. Now By using this new feature you can reply to a particular comment and read the entire conversation. Blogger threaded commenting feature helps us to easily differentiate between whether someone is responding to another comment on the thread or making a general comment on the thread.
How To Enable ?

To enable threaded comments in your blog, you must enable a full-text blog feed and select embedded comments through your settings.

Step 1: Enable full-text blog feed.
  1. Go to Settings Other
  2. Allow Blog Feed option set to Full.
Enable Blogger Threaded Commenting
if you are using older blogger interface, then refer below image.
Activating Blogger Threaded Comment
Step 2: Enable embedded commenting option.
  1. Go to Settings Posts and Comments 
  2. Comment Location option set to Embedded
Blogger Embedding Comment
In older interface,
Threaded Commenting
That is all..! Now check your comment area. If you need any help regarding to this, then feel free to ask to me. Happy blogging!