question

Good morning,

After finishing one project i realised  that i didn't change  the surface and the ceiling temperature difference. Please see print screen .

I would like to change that because the current project is a building so the floor is common with the previous flat floor and the same with the ceiling(common with the next above floor).

Any idea how to change from global? if its possible. I am asking because the only way i know is to change it room by room. 2.pdf