Like the Harmony Units, you can not sync multiples remotes to one Hub. However, I wanted two remotes in my living room so I bought a IR Repeater (from amazon) and plugged 2 Hubs to the Input. It's tricky because you need to make sure whether you need 2.5 vs 3.5 plugs and stereo vs mono plugs for Inputs/Outputs depending on your IR Repeater choice but it works! The only downside (at least with Harmony) is you have to program each remote, there was no way to just "copy" all the work to the 2nd remote.
brentcarson