mapping short cut key #1 in rhino

[kurogami]

Hi all,
I use space pilot with my rhino 5 (64bit), and I can map every shortcut number except for #1. The default is set to (Redo), I want to map it as "save" and it will let me do that, however, it will default back to (redo) again on its own... anyone else has this problem and know how to fix it? i have the latest drive update for my space pilot.

thank you.

[UtaSH]

What operating system do you have?

What is the driver version you have installed?