shooting Color and B&W simultaneously

[eyebidder]

Hi all,
First time here. Just got a D7000 and someone told me I could set the camera to shoot both Color & BW at the same time(camera will produce two pictures) but I cannot figure out how to set this up. Do I need to use both SD slots and then assign instructions for each?
Thank in advance for any assistance!

 

[480sparky]

Asked and answered.