Here you can easily edit xml files for hots using the scheme
In your .stormlayout file, add
<?xml version="1.0" encoding="UTF-8"?>
<Desc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/AestroFidelium/HotsSchemaHelper/master/aeschema.xsd">
</Desc>
Done its work