Hello @davidm1708369
You can use the schema extension, this is exacly what it does.
You have to create a new schema (usually, we use the same name, and a custom namespace, ex: nms:recipient => cus:recipient), with the specific attribute "extendedSchema" on the main "srcSchema" element. If you use the schema creation Wizard, you'll see the "Schema Extension" option that guide you for the creation.
<srcSchema entitySchema="xtk:srcSchema"
extendedSchema="nms:recipient" name="recipient"
namespace="cus" xtkschema="xtk:srcSchema">
<enumeration basetype="byte" name="newEnum">
<value label="Value 0" name="value0" value="0"/>
<value label="Value 1" name="value1" value="1"/>
</enumeration>
<element name="recipient">
<!-- New element/attribute creation-->
<attribute name="myNewAttribute" enum="newEnum" type="byte"/>
<!--Override existing attribute spec by targeting its name-->
<attribute length="50" name="firstName"/>
</element>
</srcSchema> That way you can also add values into an existing enumeration.
Cedric
