Master reference scale setup, you can point to it anywhere in project with either Note Harmonize device or Pitch Quantize module with sidechain note input from this Master device.
Additionally, you can use note input from track to shift root key of the scale, or shift root manually with Key offset remote control. Also you can use track note input as Global transpose modulation, which can be tapped into in Follower preset (you have to point to device called Global transpose in Pre-FX chain of this Grid)
Revised Master scale device + Scale receiver. You put Master part on a separate track, configure it's scale via Pitch Quantize module. additionally there are key offset options, where key input can be used for offset, as well as for global transpose. Where needed, put Receiver preset and set sidechain input for Pitch Quantizer module to output of the Master scale track, additionally you can select Audio sidechain in there designed for global transpose, target device called appropriately in Master Note Grid's chains, after that you can use global transpose option of the Master scale.