1D lightweight slab with prestressed beam and EPS as lightening element

How to idealize a lightweight slab constructed with prestressed beam elements spaced every 60 cm between beam axes, EPS as a lightening complement, and a 5 cm concrete topping, in which a 6 mm iron grid is installed as shrinkage reinforcement.
Can someone refer me to a tutorial video to perform the idealization in RFEM 6 for students?
Thank you very much in advance for your attention and help.