Grub version change

Is there a way to change from Grub 1 to Grub 2 from Yast,without breaking the boot configuration,or reverse?Thanks!

Could you be more specific what you call “boot configuration”? Different boot menu layout, different (or lack of) splash screen, etc?

And what version of openSUSE?

No I mean not breaking the bootloader when changing from on version of grub to another,on openSuse 12.2!