Subtracting channels... stereo please?

Hello everyone,

In the Stereo Flip modes there’s an option called ‘subtract’, to “remove centered material from a stereo signal”. It returns a mono signal, which I understand: the result is the subtract of the two channels.
But still there should be a way to get a stereo result, without the centered sounds, right?
I thought if one would then subtract again the left channel from the mono result of ‘subtract’, the original right channel would remain and vice versa. But then there’s the problem ofcourse that we do not have the absolute left channel as the centered sounds are mixed in it as well.
So, does anyone know a solution to this? I’m using Cubase Artist 6, but please don’t tell me to upgrade :wink: