I've got the latest Powered Up remote, I was hoping it would pair with the Move Hub instead of using the Boost App.
At the moment it doesn't want to pair.
This is not possible at the moment. This could be enabled in a future firmware update, but I'm honestly not sure how this would work. The Move Hub has 4 possible outputs. Mapping those to the pair of outputs normally controlled by the current remote seems like it would be somewhat clunky or non-intuitive.
If you use third party software to form a Powered Up network you can pair the remote and the Move hub to a computer and control them both from there. You could write your program such that pressing the green button would change the LED colour and swap between controlling ports A/B or C/D.