Missing response option in transaction section

Hi all,

in above image as highlighted, i can see only request in dropdown. how can i unable response option?
basically inside Observability -> APM ->Services ->service_name -> Transactions-> specific transaction

in Trace sample i an see multiple records, how to find the specific one. suppose if i have request_id coming in response body, then may be i can search it(i tried the same but not working).
how to solve this?

Thank you in advance.