Modifying code to run multiple MLX90333 sensors with Arduino Micro

I just tried my single sensor code with those lines commented out, and I found that you are correct that they are unneeded. My two sensor circuit still doesn't work though. When using SPI.begin, I should still need to define additional Slave select pins right? Here is that chunk of code:

//*******Arduino MICRO SPI pins********
//#define SS 17   
//#define SCK 15  
//#define MOSI 16  
//#define MISO 14  
#define SS1 2

byte dataBuffer[8];

void setup() {
  Serial.begin(9600); 
  SPI.begin;
  //pinMode(SS, OUTPUT);
  //pinMode(SCK, OUTPUT);
  //pinMode(MOSI, OUTPUT);
  //pinMode(MISO, INPUT);
  pinMode(SS1, OUTPUT);

}