Previous and new Waypoints will network with HB ethernet ...
Waypoints do not physically transfer thru ethernet at any time ... but each unit can display the Waypoints created (or stored) in the other unit ...
While it is possible to export Waypoints from the 959 and import them into the HELIX, double Waypoints would then be displayed on each unit (when both units are powered on and Waypoints sharing is turned on in the networking Menu) ...
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Unfortunately any mapping will not share except in SOLIX series or ONIX series ...
Rickie