Yes, for example. Shoot 4K 16:9, but set User Action to equal 4K HD. Have REDCINE-X extract (crop) to the User Action size....Updated metadata in .R3D file to record User Action and Title area / positions.
Advantage is you still have 2:1 downscale to 1080p, but also have extra recorded area for image stabilization / reframing etc..



