Is possible a "Show" button in the Editor that show fields in read-only mode?

Hi,
Is posible to configure editor to show a 4th button "Show" so when clicked shows all fields in a form-like interface but only to read all fields values?

For example, I show 4 fields in the table, but the user want to see all 10 fields, and I don't want to add the extra 6 columns

Thanks in advance.

Alfredo.