How does one delete fields from a transaction type (Service Request) in SAP CRM Webui?

Hi,

       I would like to delete all the "reference objects" and "Relationship" fields on my transaction type (service request) on the web UI. Please see screen shot attached highlighted of what I would like to delete.

      When I go into "configuration" mode on the Web UI, I am not sure how to do it.Please see attached of the configuration mode after I clicked on the configuration icon "clock".  Please outline the steps to delete fields on the Web UI for a transaction type.

    Thank you in advance for your help.