Hi,
I want to modify the RMB sentence coming from OpenCpn, as the statement has the origin and destination waypoint transposed. If you select a point and GoTo your origin should be waypoint 1 and the destination should be waypoint 2.  The RMB statement has them in reverse.

I know I could send it to SignalK and then convert SignalK data to NMEA but that seem very roundabout.

I am thinking of using the NmeaConverter plugin.  However it is not listed in the available plugins in OpenCpn and also apt-get install can't find it either.

I am running OpenCpn 5.6.2 and have all opdates installed.
How do I install NmeaConverter plugin?
Jodel