[otrs] ITSM Change Attributes

Hello, I'm currently testing the latest OTRS ITSM 3.0 beta1 version. I would like to modify the 'Add Change' form (ITSM Change -> New) so it contains more text fields similar to 'Description' and 'Justification'. Ideally I would like to add attributes like 'Risk Analysis' and 'Test Plan' that need to be populated when the Change is created. I know I can use FreeText fields but it looks like FreeText are only dropdown boxes and we need fully editable text fields. Already spent few hours on it but no luck so far. Any ideas? - Thanks Robert