All the foundation/slab detailing comes from well-known CSI software, SAFE. On the detailings of foundations and slabs, diameter and distance of main reinforcement can be set based on the code. These parameters can be separately set for each foundation strip for layers A and B. In addition, reinforcement positioning domains are shown on foundation or slab layouts. When you make a cross section of foundation/slab, main rebars are shown there.
In brief, foundation/slab main rebars layout includes:

• Layers A and B main rebars
• Reinforcement positioning distances
• Axes
• Concrete level codes
• Cross section positions
• And much more