Similar to Append Structure, you can also enhance the Search help using the Append Search Help as part of the ABAP Enhancement Framework.
Append Search Help
Search helps are integrated for easy access into almost all fields in standard SAP. Enhancing the Search help would improve the user experience without actually changing any of the existing objects. You can add the new search help to the existing search help by changing the standard search help as well. If you do so, you would need to pay extra attention at time of upgrade or support pack installation.
To eliminate this problem, you can extend the existing search help using the Append Search help without changing – registering – the underlying standard object.
Steps to create Append Search Help
When you display the Search Help, if you notice any highlighted entries as the search helps, those are the Append search helps.