Is the Bluetooth Audio stereo mixdown available on the EON715's PASS THRU to drive an EON718S?

Sidlinger

If so, can anyone recommend their favorite cable for this? Thanks.

P.S.: If the answer to this is yes, then I'll order an EON718S immediately. And once firmware is available to allow Bluetooth stereo audio, then I'll order a second EON718S and a second EON715.