Good Morning Luke!
Green is always north by default. Green axis always points up on your screen when a top down/plan view is created.
To reorient your plan…
- right click on any axis and choose move
- rotate about the blue axis by 90, click ok
- right click on any axis and choose align view
- update all cameras in the plan scenes affected
If your building is off the usual axes, for instance after geolocating, you can use the axes tool to align… then right click on the new axes and choose align view. Again, solid green axis will always point up on your screen in top down/plan views.