VBA in BPC Reports

Hello Experts,

I am comfortable with reporting in BPC 10.  However, my knowledge in creating / coding / executing VB macros in BPC reports is very limited.  Can you please guide me in the following aspects:

(1) how to get started in VB macros; 

(2) are there any in-built macros in BPC;  and

(3) where to find the code for the macros and modify it to suit our needs.

Thanks in advance for all your guidance.

Best regards,

Vijay.