Blinds as a Group

This may seem obvious but can you group several blind controllers (I’ve ordered a few of Bee ones) to control them all together. I have it and it’s working well for lights that all get dimmed to the save level using a ZigBee group…

Does the same principle apply for blind / cover type devices?

Yes, you can group them in a similar manner. If all covers within the group are open, you only see the close option in the GUi and vice versa. If some are opened and some others closed, you will see all options.

Great. It’s more to keep 3 in a row in sync that they all open and close same amount together.

Yes, of course. All covers are triggered at the same time, no matter if actioned via GUI, or automation

FYI, submitted doc PR about binding https://github.com/home-assistant/home-assistant.io/pull/16336