Vikram,
the webMethods Cloud settings have nothing to do with Universal Messaging. They are intended for making a connection with the cloud-hosted webMethods Integration Cloud (http://www.webmethodscloud.com/).
You can set up a connection from Integration Server to a Universal Messaging server on your own network using one of two methods:
webMethods messaging (pub.publish:* services, publishable document types, wM Messaging triggers)
Settings > Messaging > webMethods Messaging Settings
Create or edit a webMethods Messaging connection alias
or
JMS messaging (pub.jms:* services, JMS triggers)
Settings > Messaging > JMS Settings
Create or edit a JMS connection alias
#webMethods#Integration-Server-and-ESB#Universal-Messaging-Broker