How to create comments using dynamic components page like facebook

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:point_right: :point_right:i craete 1’st page using dynamic components…
When i click on comment button open another page in the given example open page 2

So my question is that

:one:What type of page 2 is
Dynamic / static​:grey_question::grey_question:
:two: After opening page 2
(we can write comments and press send button) or (press back button for exit this page)
After that we can simply reach this position and this perticular post where I saw and want to post some comments…

So now how we reach in the same position and same post which I saw (using dynamic components)?
:three:if i create dynamic/static comments page i don’t false the visiblity of comment page??