I reckon some of this may need to wait until the actual mock-up rigs are on display, as the video doesn't show all the seat's features... eg if you zoom in on the pic showing the large screen positioned above the footwell you can see indications of the stowage space in there (by dint of the latch circled in the pic below), it was just one element not explored in a video which was largely and understandably selling the new stuff.