void setup() {
  const char* source = "Hello World";
  // const char* source = "The quick brown fox jumps over the lazy dog";
  //                    0        1         2         3          4  
  //                    1234567890123456789012345678901234567989012
  const char* source2 = "Right on";
  const char* source3 = "Watch this space";
  String myString = String(source3);
  int rows = 3;
  int columns = 2;
  int characters= 30;
  int counter = 65;
  char destination[rows][columns][characters];
  Serial.begin(115200);
  // Serial.begin(9600);
  while (!Serial) {
  }
  delay(5000);
  // Serial.println(source);
  for (int x = 0; x < rows; x++) {
    for (int y = 0; y < columns; y++){
      strcpy(destination[x][y], "\0");
      Serial.print(x);
      Serial.print("   ");
      Serial.print(y);
      Serial.print("   ");
      Serial.println(destination[x][y]);
      counter ++;
    }
  }
  strcpy(destination[0][0], source);
  Serial.println(destination[0][0]);
  strcpy(destination[1][1], source2);
  Serial.println(destination[1][1]);
  Serial.println(destination[1][0]);
  Serial.println(myString);
  // strcat(destination[4], myString);
  // Serial.println(destination[4]);
}
void loop() {}