Referencing Serial output
Almost all of those things you do which involve functions like print, println, and write all derive from the Print class.  You could have an array of Print objects and print to whichever you like.  

Print* outs[] = {&amp;Serial, &amp;Serial1, &amp;mySoftSerial};

//  Later somewhere in code:


outs[0]-&gt;println("This prints to Serial");
outs[1]-&gt;println("This prints to Serial1");
outs[2]-&gt;println("This prints to mySoftSerial");

for(int i = 0; i &lt; 3; i++){
  outs[i]-&gt;println("This prints to all 3.  You could even make this bit a function");
}