Using Material tool

1. Click on Material tool in order to check if all structural objects in your model have valid structural material.  Structural material check dialog will appear with a list of all objects without valid structural material, as shown in figure below (if all structural objects in your model have valid structural material, the list will be empty). If you check Show only Structural elements, the list will be filtered to show only objects that are structural (this is only important for floors and walls that can be marked as non - structural elements).

2. Proceed with one of the following options:

1. Double click on one element to highlight it in the model.

2. Select one or more elements (with Ctrl button), or all elements (Ctrl + A) and right click, chose Isolate selected to isolate them in a view. Close the Structural material check dialog in order to modify the objects (e.g. add the structural material) in the Temporary Hide/Isolate view. To close the view click on Reset Temporary Hide/Isolate.