Apogee Symphony I/O Wavegrid 11.1 monitoring support

While reading the Apogee Symphony I/O SoundGrid manual, I discovered that you can only manage monitoring up to 9.1 and not 11.1 as on the other Symphony versions (Thunderbolt, Dante, Pro Tools,…).
Is this a limitation of the SoundGrid technology?
Is it possible to update the Symphony I/O DigiGrid to support 11.1 monitoring?
The Apogee Symphony is one of the few interfaces that supports 11.1 (Dolby Atmos) monitoring. It would be great to have the ability to work in Dolby Atmos with a SoundGrid system at least for the monitoring.