Currently, the organization of the tabs for a request/response looks like this:
"Headers"
↳ General
↳ Response Headers
↳ "View Source" = Raw Headers
↳ Request Headers
↳ "View Source" = Raw Headers
↳ Query String Parameters
↳ "View Source" = Raw QSP
↳ Request Payload
↳ (Preview of request)
"Preview"
↳ (Preview of response only)
"Response"
↳ (Raw response only)
This is, to be frank, a mess. "Headers" contains lots of things unrelated to headers, for both the request and the response. There are two tabs dedicated to the response (neither of which contain the response headers), and 0 dedicated to the request. The response body is the only thing where viewing the raw data requires going to another tab, rather than clicking "View Source".
A better organization would look like this:
"Request"
↳ General
↳ Query String Parameters
↳ "View Source" = Raw QSP
↳ Headers
↳ "View Source" = Raw Headers
↳ Payload
↳ "View Source" = Raw Payload
"Response"
↳ Headers
↳ "View Source" = Raw Headers
↳ Payload
↳ "View Source" = Raw Payload