I’d love to see a lightweight way to ask follow-up questions about a specific part of a ChatGPT response without branching or cluttering the main conversation.

Proposed flow

Highlight a sentence or paragraph → tap “Ask about this” → open a small contextual subthread attached to that passage → ask one or several clarification questions → close it → continue reading the original conversation.

This is different from Branch in new chat.

Branching creates a separate full conversation from an entire message. What I’m proposing is a lightweight, temporary discussion attached specifically to selected text inside a response.

Example:

Select text → Ask about this → contextual subthread → clarification → return to main chat

Why it would be useful

In long conversations, especially when studying, coding, researching, or learning languages, I often want to clarify one small point without interrupting the main line of discussion.

At the moment, these small questions either clutter the main chat or require creating another conversation.

An inline contextual thread would preserve the structure of the main conversation while still allowing users to explore individual ideas in depth.

The exact UI could be a bottom sheet, pop-up, nested thread, or another implementation. The important part is that the subthread remains attached to the selected passage rather than becoming another full chat.