Autocreate Config - BOM explosion level to the first level buy

I would like to understand standard oracle behavior for AutoCreate Config for the below bom:
ATO Model                 (In Sales Order Line)
  Mandatory Option 1 (Not In Sales Order Line)
  Option Class 1         (In Sales Order Line)
    Option Class 1.1    (In Sales Order Line)
      Option 1.1            (In Sales Order Line)
        Phantom 1.1      (Not In Sales Order Line)
          Buy 1.1            (Not In Sales Order Line)
  Option Class 2         (In Sales Order Line)
    Option 2                 (In Sales Order Line)
      Buy 2                   (Not In Sales Order Line)
  Option Class 3         (In Sales Order Line)
    Option 3                 (In Sales Order Line)
      Phantom 3           (Not In Sales Order Line)
       Buy 3                  (Not In Sales Order Line)

Can I see the ATO*Item to have the following (specifically to the first buy item level) ?