Display dynamic content individually

Hi everyone
Please forgive me for my poor english.

I am just starting to learn how to build with Bubble,
trying build service like Quora, but more specialized in specific field.

Reading through officials
How To Build A Quora Clone Without Code
It is very helpful, but I am having trouble with

Display dynamic content on a questions page

I was able to create action to navigate user to an individual question page
and post comments, but submitted comments are displayed in all other question pages as well.

I only want to display comments for each questions.

How am I able to achieve this.