I am new to Discourse source code but really want to shorten comments like on Facebook comments, I wonder if Source discourse can do that? Because I don’t want the replies to be stretched down…
If it can be done, how would it be? I look forward to further instructions
Could you provide an image or something to help explain what you mean?
No, I want the comment replies to be arranged like Facebook, not stretched down the page.
I think the answer to your question is probably yes, but you (or someone else) is going to need to dig into the code.
I have been looking for a while but have not found it in the source code so I asked my team for support. Thank you!
We may be talking at cross purposes. 
It doesn’t exist as a setting (or plugin or theme component) as far as I’m understanding your request, so you will need to engineer it. If that’s what you’re trying to do, you can explain in detail where you’re getting stuck?
That is, I want the replies to the post (comments) to be arranged in a branch form like the comment layout that the Facebook platform is using. I don’t know if the Discourse source can do that, so I came here to get support!
Because I find the comment layout like Facebook is very optimal for Reply! If the Discourse source code has an option to choose how to display this layout, it would be great!
Discourse has a plugin architecture that allows you to customise the interface as well as a freelancer and agency supported ecosystem.
If you have the budget to build this extension, consider posting your requirements in Marketplace
I don’t think you can do that in only a few hours.
Discourse is not threaded. It’s designed to make it easy to read all of the discussion. If you want to have to click three times to read each post and then not be able to tell which ones you’ve already read, you’ll likely do it much more easily on some other platform.
You’re basically looking for an option to redesign the entire site. What’s your budget lol
So comments to topic are shown as usual, but comments to a post (another than OP) is shown as Journal does.
Why I have a weak memory print we have already a gizmo that does it or at least close to it.
What wasn’t asked is Facebook-style threads are horrible and makes everything difficult.
Do you mean when a member posts a long comment. It cuts it off and gives Option for “more”?
Yes, you know what I mean.
Just a note to make your post clearer. You should have posted 2 pics of the same set of comments. First pic showing a highlighted comment that can be expanded. With the 2nd pic showing th comment expanded fully showing full comment.
Facebook does 2 kinds of collapses. One shortens a post with “See More”
While the other collapses a series of comments that replied to a single comment.
Imho this is what caused some confusion with what you’re looking to achieve. 
현재 이 기능을 수행하는 #customization:theme-component는 없는 것 같습니다. 하지만 가능할 것이라 생각합니다. #marketplace에 게시하면 누군가가 이 기능을 구현하는 컴포넌트를 만들어 줄 가능성이 높습니다.
컴포저에는 '상세 정보 숨기기’라는 유사한 기능이 있습니다.
하지만 질문자님의 경우, 게시글/댓글이 "x"자 또는 "x"단어보다 길면 발췌문을 표시하고, 개별 게시글/댓글을 확장 및 축소할 수 있는 옵션을 원하시는 것입니다.
위 내용은 ‘상세 정보 숨기기’ 기능입니다.
글을 한꺼번에 길게 쓰는 경향이 있는 저 같은 사람들 때문에 생긴 기능일 가능성이 높습니다. 
