Converting IFC to FDS

[Finn Drangsholt]

I am new to Blender/BlenderFDS. I have been able to import an IFC file to Blender 3.4.0, and copied the result to Blender 3.2.0, and then add a MESH that cover the whole building. I now want to export all element Blender FDS has tagged as SURF_ID= ‘concrete’ to a FDS file. The only way I have managed to do this is to click on each element in the 3D model and then check the XB box. Is it a more efficient way to do this ?