Two questions for this one.
Firstly, I’ve noticed there are no +1 channels available on the new aerial-free service. Are there any plans to make these available?
In addition, I’ve discovered our second box used in a separate room, is not linked in any way to the main TV Box Pro and unlike Sky Q, recordings are not shared between boxes. It also doesn’t have any recording capabilities of its own. Is this upgradeable as we watch television in both rooms equally and I had assumed that the second box would act similarly too that available through Sky Q?
No, there are no plans to add the +1 channels to the IP service.
No, there are no upgrades available to allow recordings to be viewable from the other box. You're welcome to purchase a recordable second box from elsewhere and record everything on there too, but it's not available from BT. Make sure you buy a BT TV Pro box if you want channels to be available over IP.