2 separate systems - can I combine the monitoring into single site

[gcherian]

I have a 10.24 kW ground mount (SE10000) installed in 2017 and I added another 6 kW roof mount (SE5000H) - both installed by separate installers and are different sites under my monitoring account. The bigger system is a line side tap and the other fed through a breaker. I have the wattnode modbus consumption meter on the bigger system. I really would like these two sites combined into a single site where I can see all production and consumption in a single view. Is this possible? What needs to be done? I can get the second installer to come back to do the needed work if there is anything to be wired. Any help or pointers would be appreciated. Thank you.