service-endpoint-editor/src/main/webapp/WEB-INF/liferay-display.xml

<?xml version="1.0"?>
<!DOCTYPE display PUBLIC "-//Liferay//DTD Display 5.2.0//EN" "http://www.liferay.com/dtd/liferay-display_5_2_0.dtd">

<display>
	<category name="gCube Applications">
		<portlet id="RuntimeResourceCreator" />
	</category>
</display>