Maybe this can be done, but I don't think so. Someone lead me to the light if it can
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If you have B&G5000, a B&G Graphic Display and an MOB button linked to B&G, pressing the MOB button changes the graphic display to MOB screen, and puts an MOB position into Expedition, thereby changing Expedition's Mark Range and Bearing data to the MOB position.
What I'd like is to be able to interchange start marks information between the graphic display and Expedition when pinged. I don't much care on which technology the ping is initiated.