From the list of available capture interfaces select the gear icon next to "SSH remote capture: sshdump" to be able to configure the plugin first. Fields to fill out:
- Remote SSH server address
- Remote SSH username
- (optional) ProxyCommand: ssh -q -W %h:%p jumphost
- Remote capture command: dumpcap -w - -i ens160 -f 'udp port 4342 or udp port 4789'
It seems that "Remote interface" and "Remote capture filter" are ignored so their values need to be included in the "Remote capture command".