(See Also how to i make a new section on list during play vi.?)
The list box has a property node called Item Names that let's you return an array of strings for the items in list. You can also write to that node to change the list of names.
If you have a create button, you could read the array, add your new item to the end, then write the array back to the property node.
For the delete button. Read the array, Use Delete from Array using the value of the list box as the index of the array you want to delete. Then write back the new array to the property node.
