[CA11] Axiom and e97 on network

[fernandoromera]

"Please be aware that data sharing between the MFDs would not be the same as that which would occur if both MFDs were running LightHouse II software or both were running LightHouse 3 software and the MFDs were interfaced to one another via an Ethernet network"

Following this answer, what data can be shared exactally? I have a MFD e127 and an Axiom 7 and have already linked them by SeaTalkng / NMEA 2000 backbone. Nothing happened after that. What´s the next step? Software configuration? How can I see if they´re effectively sharing data? Where can I see it on the screen?