Resolution:
For the methods tab, you need to have hawk console plugin loaded into the admin server.

You get this plugin with the Hawk standalone product  installation.

You will find the hawk console plug-in in $TIBCO_HOME\hawk\admin-plugins folder.
Please make sure that you have hawk standlone product installed.

If you have the Hawk standalone product installed and still do not see the methods tab then you can add them manually in plugins tab in Administrator.