Which extensibility capabilities for SAP IBP, add-in for Microsoft Excel are provided by Custom VBA coding?

You are developing the functionality and appearance of the Excel UI for SAP IBP business users.

Which extensibility capabilities for SAP IBP, add-in for Microsoft Excel are provided by Custom VBA coding? Note: There are 2 correct answers to this question.
A . Changing the member names
B. Changing the layout of the master data workbooks
C. Changing the entries from the Name Manager
D. SAP IBP ribbon extension

Answer: B,D