It is not recommended to have both plugged in at this time. However, there are those that are experimenting with just that configuration.
Be aware that when you plug more than one thing into the boost 2.0, that the voltage is shared among the connections.
So two remotes would no longer be boosted, but as if you wired them into each output directly -- the only difference is that you would be able to mix both outputs together to both remotes.
That and you would have one of each type. You do not want to plug a white (BN) remote into the MN port.
For more details, please check: