Reposting from a comment to an older answer by @wkirby as a new question....
Further to your answer, where you say you can connect a 2nd GX device, but not share between the 2 GX's:
I already have a Multiplus with CCGX plus a separate existing extensive N2K network on a boat & want to expand monitoring to include several tanks, wireless temp monitors & share some data from each of the CCGX & Cerbo with the exisiting N2K network.
I am happy to keep the the 2 GX devices as separate systems (but effectively sitting on the same N2K network), and would prefer not to replace the CCGX with Cerbo+Touch 50/70 for the existing "House" Electrical system which has been working well for 3+ years:
Would it be possible to add Cerbo via VE CAN to CCGX and then connect the Cerbo to the N2K network via a single VE Can to NMEA 2000 cable?
Many thanks
Andy
