Dear Waseem
 
Both are possible. 
1- You can use wall type manager 
(using TRNbuild) to develop your desire wall details as many as you want. And 
then use those predefined walls in different spaces/zones.
2-You can set the weather inputs 
on type 51 constant. For this you can simply use new equation (simulation 
studio/assembly/ insert new equation) 
 
Regards
Mehdi 
Shahrestani
 I have a question. Is it possible to have a multizone building model which 
has wall of different layers? I mean e.g. inner layer plaster and then brick and 
so on?
Also is it possible to set outside temperature constant and increase heat 
without having any heating control to check how the temperature transfer through 
the wall (temperature at different layers of the wall)?
Looking forward to hearing from you.