GGU-SLAB: Step 4: Assign the subgrade reaction modulus (Example 1)
Go to the menu item "Subgrade/Default subgrade".

Enter a 0 as subgrade and press the "For all" button. This assigns all nodes the same subgrade.
Go to the menu item "Subgrade/Default subgrade".
Enter a 0 as subgrade and press the "For all" button. This assigns all nodes the same subgrade.