@sap/generator-fiori/generators/generator-adp/templates/rta/common/op-custom-section.xml

Create an SAPUI5 application using SAP Fiori elements or a freestyle approach

<!-- Use stable and unique IDs!-->
<core:FragmentDefinition
    xmlns:uxap="sap.uxap"
    xmlns:core='sap.ui.core'
    xmlns='sap.m'
><% if (targetAggregation && controlType && viewName) { %>
    <!-- viewName: <%= viewName %> -->
    <!-- controlType: <%= controlType %> -->
    <!-- targetAggregation: <%= targetAggregation %> --> <% } %>
    <uxap:ObjectPageSection
        id="<%- ids.objectPageSection %>"
        title="New Custom Section"
    >
        <uxap:ObjectPageSubSection id="<%- ids.objectPageSubSection %>">
            <HBox id="<%- ids.hBox %>">
                <!-- add your xml here -->
            </HBox>
        </uxap:ObjectPageSubSection>
    </uxap:ObjectPageSection>
</core:FragmentDefinition>