Record Home and Record Page Metadata

Account_Record_Page.flexipage

Tab Order - main panel

This is the code to replace the tab order of Detail and Related - move the order of Component Instances and make detailTabContent active. 

    <flexiPageRegions>
        <componentInstances>
            <componentInstanceProperties>
                <name>active</name>
                <value>true</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>body</name>
                <value>detailTabContent</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>title</name>
                <value>Standard.Tab.detail</value>
            </componentInstanceProperties>
            <componentName>flexipage:tab</componentName>
        </componentInstances>
        <componentInstances>
            <componentInstanceProperties>
                <name>active</name>
                <value>false</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>body</name>
                <value>relatedTabContent</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>title</name>
                <value>Standard.Tab.relatedLists</value>
            </componentInstanceProperties>
            <componentName>flexipage:tab</componentName>
        </componentInstances>
        <mode>Replace</mode>
        <name>maintabs</name>
        <type>Facet</type>
    </flexiPageRegions>

Tab order - side panel

Move feedTabContent to first and activityTabContent to second and make feedTabContent active. 

         <componentInstances>
            <componentInstanceProperties>
                <name>active</name>
                <value>true</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>body</name>
                <value>feedTabContent</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>title</name>
                <value>Standard.Tab.collaborate</value>
            </componentInstanceProperties>
            <componentName>flexipage:tab</componentName>
        </componentInstances>
        <componentInstances>
            <componentInstanceProperties>
                <name>active</name>
                <value>false</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>body</name>
                <value>activityTabContent</value>
            </componentInstanceProperties>
            <componentInstanceProperties>
                <name>title</name>
                <value>Standard.Tab.activity</value>
            </componentInstanceProperties>
            <componentName>flexipage:tab</componentName>
        </componentInstances>