How to only show packets from a certain application?

There is no way to do it.

ref: https://www.wireshark.org/lists/wireshark-users/200802/msg00124.html

useful filter in V2G(vehicle to grid) communication

1. show all TCP problems –> tcp.analysis.flags, same as wireshark expert information
2. show only one TCP stream –> right click then go down to follow TCP stream
3. TODO: find string in info –> Ctrl + F