So I now have a BIBO 2 3D printer with a dual extruder. I can print 2 color prints with no issue, however I can't for the life of me figure out how I can print 2 identical object using both extruders. I would like to print 4 wheels. They are the same dimensions. I can duplicate it but only one head prints. I'm using Cura 15.04.6, any ideas?