New field on Service Desk - I cannot hide it!

Hi - you've introduced a new field onto all Service Desk, giving the Customers the ability to log a ticket on behalf of someone else - "Raise this request on behalf of" ...
This was needed and I applaud that you've created it and deployed it - but I have had to create a field in the meantime to fulfill this role - "Call Originator". This is inbuilt into my dashboards and MI work for the company, to monitor who is raising calls on behalf of other people.
I have checked and I cannot add your new field to any of my Issue filters or dashboard views, so instead I need this field to be removable from my Customer Portal pages as I my customers to use the "Call Originator" field instead. But guess what - you've hardcoded it onto the page so I cannot remove it.
HELP! Can you please show how I can remove this asap as I am suddenly getting people complain about duplicate fields, not using the field I need for MI purposes and generally not happy about the Portal. This is damaging MONTHS of work to get this into my company and get people using it.