Just how many sounds is my virus suppose to have?

[pressure]

Im confused and maybe someone can help me. I dont know how many sounds my virus is suppose to have.

I have the virus KC. I have 4 BANKS A-D

But can all these BANKS be erased with new sounds?

For example, I loaded some sounds into bank A, can I load sounds into other banks or is it just BANK A?? If I put sounds into bank A, where to I save my multis?