If you demolish an insert in a phase later than the host's creation phase, you can change the structure of the infill element. You can use this technique to represent different materials and thicknesses in the host.
To change the structure of an infill element
This filter shows all original elements that were not demolished and all new elements added to the building model.
You may need to move the cursor along a face of the element until it highlights. (Watch the status bar for information about highlighted elements.) The following image shows a selected infill element.
The infill element updates accordingly, as shown in the following section view.