Can use use ^zero as a bookmark key?

I currently have PSPad 4.5.8 (2482). The zero key above the letters does not work as a bookmark key in my code files. Can that be added to the program?

Or is there a way I can add this to my version of PSPad?

Thanks. I do use a lot of bookmarks.

Hello

PSPad has this shortcut assigned, but Windows consumes it for itself. How to release it in Windows for other applications:

www.eightforums.com

It worked on Win 7. Thank you!