Its walls will be moveable by a professional, so it can be redesigned in a day.
The chair should be stationary and not moveable.
In its simplest form the exoskeleton of a typical somite is a ring of chitin defined from the rings in front and behind by areas of thinner integument forming moveable joints, and having a pair of appendages articulated to its ventral surface on either side of the middle line.
The seats have moveable armrests which allow passengers in wheelchairs to move onto other seats.
They have moveable position handlebars to enable them to be ridden standing up, sitting down or lying almost prone.