simple Reverse stereo plug?

i'd like a simple vst or directx effect that just switches right and left channels.

i would like to stick it on the master of a multitrack project, and enable it when i want to hear a song "fresh"

there's no convenient way i can find in Samplitude to do that and quickly switch back

check out moneo http://www.betabugsaudio.com/plugs.php

it has even preset "reverser" included

moneo will work, thanks Velns