Answer:
In the case of glass design using the RF‑GLASS add-on module, the layer composition is defined in the add-on module (Window 1.2). The layer structure in the dialog box of RFEM 5 is irrelevant, because the add-on module creates a temporary calculation model during the calculation. It is only important to define the Glass surface stiffness (see the image).
The same applies to the support of the pulley. It is also defined completely in RF‑GLASS.
On our website, you can find an interesting webinar on "Design of Glass Structures in RFEM".