vs-metadata/metadata/g_asset.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<MetadataFieldGroupDocument xmlns="http://xml.vidispine.com/schema/vidispine">
    <name>Asset</name>
    <field>
        <name>gnm_category</name>
        <schema min="1" max="1" name="gnm_category"/>
        <type>string-exact</type>
        <stringRestriction>
            <minLength>0</minLength>
            <maxLength>32</maxLength>
        </stringRestriction>
        <data>
            <key>extradata</key>
            <value>{"name":"Category", "readonly":true,"type":"dropdown", "values": [
                {"value":"Rushes", "key":"Rushes"},
                {"value":"Branding", "key":"Branding"},
                {"value":"Deliverable", "key":"Deliverable"},
                {"value":"Stock", "key":"Stock"}
                ]}</value>
        </data>
        <defaultValue/>
    </field>
    <field>
        <name>gnm_keywords</name>
        <schema min="0" max="1" name="gnm_keywords"/>
        <type>string</type>
        <stringRestriction>
            <minLength>0</minLength>
            <maxLength>32768</maxLength>
        </stringRestriction>
        <data>
            <key>extradata</key>
            <value>{"name":"Keywords", "readonly":false,"type":"tags"}</value>
        </data>
    </field>
    <field>
        <name>gnm_nearline_id</name>
        <schema min="0" max="1" name="gnm_nearline_id"/>
        <type>string</type>
        <stringRestriction>
            <minLength>0</minLength>
            <maxLength>32768</maxLength>
        </stringRestriction>
        <data>
            <key>extradata</key>
            <value>{"name":"Nearline item ID", "readonly":true,"type":"tags"}</value>
        </data>
    </field>
    <field>
        <name>original_filename</name>
        <schema min="1" max="1" name="original_filename"/>
        <type>string-exact</type>
        <stringRestriction>
            <minLength>0</minLength>
            <maxLength>32768</maxLength>
        </stringRestriction>
        <data>
            <key>extradata</key>
            <value>{"name":"Original Filename", "readonly":true,"type":"string"}</value>
        </data>
    </field>
    <field>
        <name>gnm_owner</name>
        <schema min="1" max="1" name="gnm_owner"/>
        <type>string</type>
        <stringRestriction>
            <minLength>0</minLength>
            <maxLength>32768</maxLength>
        </stringRestriction>
        <data>
            <key>extradata</key>
            <value>{"name":"Owner(s)", "readonly":false,"type":"tags"}</value>
        </data>
    </field>
    <field>
        <name>gnm_media_flags</name>
        <schema min="0" max="1" name="gnm_media_flags"/>
        <type>string-exact</type>
        <stringRestriction>
            <minLength>0</minLength>
            <maxLength>128</maxLength>
        </stringRestriction>
        <data>
            <key>extradata</key>
            <value>{"name":"Media flags", "readonly":false,"type":"checkbox", "values":[
                {"key":"missing_media", "value":"Media is absent"},
                {"key":"sensitive", "value":"Media is sensitive"}
            ]}</value>
        </data>
    </field>
    <field>
        <name>gnm_containing_projects</name>
        <schema min="0" max="1" name="gnm_containing_projects"/>
        <type>string-exact</type>
        <stringRestriction>
            <minLength>0</minLength>
            <maxLength>128</maxLength>
        </stringRestriction>
        <data>
            <key>extradata</key>
            <value>{"name":"Referenced by these projects", "readonly":false,"type":"tags"}</value>
        </data>
    </field>
    <field>
        <name>gnm_file_created</name>
        <schema min="1" max="1" name="gnm_file_created"/>
        <type>date</type>
        <data>
            <key>extradata</key>
            <value>{"readonly": true, "type": "timestamp", "Asset": {}, "name": "Created"}</value>
        </data>
    </field>
</MetadataFieldGroupDocument>