Virus B upload patches to banks C-

[A3s]

Hello Everybody!

First of all, I want THANK all of you, for the helps I allready gave from this forum.

My quesion:
Anyhow is it possible to overwrite, upload patches to ROM banks (C-H), I don't need most of these patches, and RAM banks are not enough for me.
I've read all the posts regarding banks, downloaded some editor softwares, but all of the can only write to banks A-B and read the others. For me it is very slow to always backup A-B (contains my selected and edited patches) when I want to try a patch set...

cheers