I was wondering about this too because my lifestyle (I work at an office in front of a computer but I do other things) so I chose sitting with some movement. But it shows that as a 24 hour activity. I would suggest showing it as a 16 hour activity with 8 hours sleep or letting us build our own....
Example: 8 hours sleep, 11 hours sitting with some activity (work plus some downtime at home), 5 hours standing and walking (takes care of the cooking and cleaning etc.) This would describe 5 days of my week and then I could add workouts and show which section they should be removed from.