- Official Post
That is part of the new FMS landing approach system or FLS. This enables non precision approaches like a LOC only approach or ILS with glide slope disabled to be flown with vertical guidance. You then fly the approach with the vertical managed mode F-G/S instead of the selected mode FPA.
This is not fully implemented and I guess FINAL isn't the correct FMA mode displayed here but it might already work to a certain extent.
See this video for example at 6:25 min:
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