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To create a new custom summary page, you need to create a single XML file in your custom project's directory under ..under <custom_project>/web/WebContent/pages/summary/<module_name>.
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In the following example, a new summary filter and field needs to be added to the existing contact information summary page. To do this, you have to copy release summary page contactInformation.xml in your custom projects directory under ..<custom_project>/web/WebContent/pages/summary/contactInfo, rename it to contactInformationCustom.xml and add the new summary filter and field.
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