X and Y axis on Arduino Serial Plotter? I am trying to plot my counter vs. time on the serial plotter, but the values on the y axis are so big there is no way that it's displaying the counter values.
I have printed both values: 

  Serial.print("counter: ");
  Serial.println(counter);
  time = millis();
  Serial.print("Time: ");
  Serial.println(time);


I expected time to show up in the x-axis, but I think it's displaying on the y-axis and I'm not sure how to change this.
The plot should just be an increasing line as the counter and time get bigger...
what am I missing?
Thanks.

Slashing out the Serial.print("Time:") does not correct anything.
Inorder to plot multiple variables or waveforms simultaneously a 'space' is printed between the two print statements.

Serial.print(counter);
Serial.print(" ");
time = millis();
Serial.println(time);


OR

Serial.print(counter);
Serial.print("\t");
time = millis();
Serial.println(time);