Hi Pragathi,
Whether you can able to access other attributes in the object?
First thing to try is to autogenerate the overview-pages. To do so, in your domain model, right-clicking your entity that contains the enumeration attribute and select 'Generate overview pages'. Very likely you will see exactly which attributes are editable and which read-only.
What security-mode is set for your project:
Your entity has access-rules providing you write-rights:
These above steps will probably get you to your solution. Good luck!