Hello,
In ABAP, it is possible to enhance transaction CS02 to display an additional popup once user has fill in the necessary info and hit Enter key:

We have a requirement to replicate the same functionality to standard Fiori app F1813 - Maintain Bill of Material. I've checked the Fiori Apps Reference Library but did not find any specific info about enhancing the app. I have also tried creating an Adaptation Project on Web IDE but was not able to override the standard functions in controller to display an additional popup + include additional logic depending on whether user clicks on "Yes/No".
Is this sort of enhancement even possible with the standard Fiori app? Or can we only do things like adding custom fields using the Custom Fields & Logic Fiori app?
Thanks.
Best Regards,
Jia-Min