If your wizard extends an existing wizard, you need to think about the order in which the steps of the combined wizard should be performed. Default behavior is to append your wizard to the wizard you are extending. You can change this by using the insert-after attribute in your step as shown:
<step id="AddedStep" insert-after="OriginalWizardStep" >
</step>
When the script is run, your wizard’s AddedStep is performed immediately after the OriginalWizardStep from the extended wizard.
You can also use the combination to entirely suppress steps in the base wizard. See the XML File Combination section of the ATG Platform Programming Guide for general information on XML-combine.
