Focus on one prompt field or answer : get a reference

Hello: 2 exemples:
1-in a conversation, i am given a lots of answers, but i need to target one specific, to mention it easier, if i could type “go deeper in your answer n°42” , or "what is the difference between
answer 41 and 49? "

2-If i want create a new discussion for example on philosophy , but i want a quick start for giving the specific context, i need to use part of a former conversation “history of sciences” from a shared chatgpt talk from another user from his input field [5,6,7] to merge it with openai answer output n° 42.

Is it already possible ? it would be great !