Changing which Extruder prints first

[IvoPi 1]

Hello

Is there a way to set which extruder you want to print 1st or does Extruder 1 always print first?  

 

I am printing with a conductive PLA in extruder 2 and am having trouble getting it to not smear or leave traces across the non-conductive material that printed first.  I want to try and have the conductive pla laid down first and then the diaelectric pla laid down.  Hoping I don't have to swap filaments. 

 

(ignore the red lines)

 

 

Thanks

Ivo