It would be great if the expanded record view could be customised separately from the grid view. From a UX perspective, it doesn’t make sense to set the field view of the expanded single record to the field view of the entire table of records. The use case for the grid view is distinct from the expanded record view e.g. I want to see more columns of data in the grid view which may guide me to the record. Since the expanded record is effectively a form view, the layout and default fields should be further custom. I guess this is similar to what Stacker.app are doing but it would be good to have it native in Airtable.
I’d love this functionality to be able to create section headers and better organize data sets.