Just paste this code in an empty xml file save it and include it in the user defined extension section as "Editor"

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

<displays>

<display type="editor" style="null" enable="true" class="Oracle#TABLE" objectType="JOB">

<name><![CDATA[My Job Information]]></name>

<query>

<sql>

<![CDATA[SELECT * FROM USER_JOBS WHERE JOB =:JOB]]>

</sql>

</query>

<CustomValues>

<TYPE>vertical</TYPE>

</CustomValues>

</display>

</displays>