Reverting stereoscopic 3d mode?

Hey guys
Accidentally converted one of the video clips to stereo thinking its for audio. reversed it using Cmd + Z but now the whole timeline thinks its stereoscopic 3d and I've looked high and low through the manual, google and what not and cannot find how to go back to normal non-stereo mode.
Now when I export, it shows up as two separate left right panes as it would for stereoscopic.
How do I go back to non-stereoscopic mode? I'm in a middle of a big edit and hurting because of this
Thanks for your help!
Accidentally converted one of the video clips to stereo thinking its for audio. reversed it using Cmd + Z but now the whole timeline thinks its stereoscopic 3d and I've looked high and low through the manual, google and what not and cannot find how to go back to normal non-stereo mode.
Now when I export, it shows up as two separate left right panes as it would for stereoscopic.
How do I go back to non-stereoscopic mode? I'm in a middle of a big edit and hurting because of this
Thanks for your help!