What actions can be performed on existing insert definitions?

The correct answer indicates that existing insert definitions can be modified in a way that allows for the removal of existing fields and changing their order. This reflects a level of flexibility within the editing capabilities of insert definitions. Understanding this is key because it means that users are not locked into a fixed structure once an insert definition is created. They can adapt the definition to better suit their evolving data requirements.

The capacity to remove fields ensures that only relevant data is maintained in the insert structure, optimizing performance and clarity. Additionally, changing the order of fields can be essential for aligning with downstream processes or improving usability for report generation. This ability to modify insert definitions enhances the overall functionality and adaptability of the system in responding to user needs and data management.

In contrast, the options indicating that only new fields can be added, that editing is not allowed after creation, and that inserts cannot be edited at all, suggest a much more restrictive approach to managing insert definitions, which is not aligned with the capabilities offered by the system. These restrictions would limit the adaptability and responsiveness of the data management practices, which is contrary to best practices in dynamic environments where data needs can frequently change.