Thank you very much for replying.
we need a software to calculate the leak of heat of a house. But different house may have different material of wall, window, door, floor...

<t>My application needs to calculate the energy cost of a home, so I need to add more properties to every wall, window and door, such as material param, structure param and so on. I am new to sweet home 3D, can you give some suggestion, if I can implement this task? Can I implement it in plugin or ...