How do I set up the third bed in a Chausson flash 514?

[Jill63]

I have recently bought a used Chausson Flash 514. It has a double over the garage but claims a small third bed can be made from the table. I can’t work out how this makes anything big enough for more than a cat to sleep on

 

[the1andonly]

Have a look towards the end of this video 6 min in