Management tab not seen to configure middleware

Hi,
Version - 3.1.0 community edition.
I am trying to setup connection with mongoDB using Apache Drill by following this link

http://www.helicalinsight.com/technical-guide/database-supported/middleware-configuration-helical-insight/

While I have setup and started apache drill in embedded mode, I don’t see the ‘management’ tab to complete the middleware configuration.

Pls help.