Show Waypoint from Raymarine Plotter

[n.akker]

I think OpenCpn is a great program for navigation.
I use it in combination with an raymarine chart plotter.
Why does a waypoint made in OpenCPN shows on the chartplotter, but a waypoint made on the raymarine or seccond OpenCPN system not in openCPN.

I like to have two openCPN systems one system inside and one system outside.