If the data is available to OpenCPN in the NMEA0183 data stream the different instruments will display relevant data; but the plugin won't tell what is available. It is assumed that the user knows what is connected. It is of course possible to activate all instruments and see what works.
https://opencpn.org/wiki/dokuwiki/doku.p...:dashboard
https://opencpn.org/wiki/dokuwiki/doku.p...:dashboard