Tshark to produce conversation list and payload length for conversation

Hi Experts,

Is there any way to use tshark to produce the conversation list and the payload length for the conversations?

When I click on Statistics-> Conversations, I can't find the payload length (minus headers). I can find payload length by specifying a field in tshark.

My question is can I combine tshark to do something like this below:

tshark -r test.pcap -T fields -e tcp.len -q -z conv, tcp