Which feature allows for the addition of fields or buttons to page layouts in Certinia?

The feature that enables the addition of fields or buttons to page layouts in Certinia is the Page Layout Editor. This tool provides administrators with the ability to customize how information is displayed to users by allowing them to drag and drop various components, such as fields and buttons, onto the layout. By using the Page Layout Editor, administrators can tailor the user interface according to the specific needs of their organization, ensuring that relevant information is easily accessible.

In contrast, the Feature Console is primarily used for managing and activating various features within the system but does not cater specifically to modifying page layouts. The Custom Settings Interface allows for setting up configuration data that can be used throughout the application, which is quite different from altering page layouts. The Data Management Console, while important for handling data import/export and integrity, does not provide tools for layout customization either. Therefore, the correct functionality related to modifying page layouts is distinctly attributed to the Page Layout Editor.