Combining Two Codes?

You have an Mega2560, using which version of IDE? You have three relays, two pushbuttons and five LEDs? What do you observe? These data help clarify your project.

Here is a simulation of your program...
blinks

Files for WOKWI.COM...

sketch.ino
#define pushButton1 2  //Push Button for Accessory port side on D2
#define relay1 3       //High Output to Relay for pushButton1 on 3
#define blueHalo1 35   //Low Output to Blue Halo on pushButton1 on 34
#define redHalo1 37    //Low Output to Red Halo on pushButton1 on 36
#define pushButton2 4   //Push Button, Navigation - Anchor
#define relay2 5        //Output to Relay for Navigation Lights
#define relay2point1 6  //Output to Relay for Anchor Light
#define blueHalo2 39    //Output to Blue Halo on pushButton1 on
#define greenHalo2 41   //Output to Green Halo on pushButton1 on
#define whiteHalo2 43   //Output to White Halo on pushButton1 on

int state = 0;
int old = 0;
int buttonPoll = 0;

void setup() {
  pinMode(pushButton1, INPUT_PULLUP);  //Push Button set as Input with internal pullup
  pinMode(relay1, OUTPUT);             //Relay1 Set to output to Relay Module
  pinMode(blueHalo1, OUTPUT);          //blueHalo1 set as output to activate Blue Halo on pushButton1
  pinMode(redHalo1, OUTPUT);           //redHalo1 set as output to activate Red Halo on pushButton1

  digitalWrite(relay1, LOW);      //set initial state of realy1 to OFF
  digitalWrite(blueHalo1, HIGH);  //set initial state of blueHalo1 to ON
  digitalWrite(redHalo1, LOW);    //set initial state of redHalo1 to OFF
  pinMode(pushButton2, INPUT_PULLUP);  //Push Button set as Input with internal pullup
  pinMode(relay2, OUTPUT);             //Relay2 Set to output to Relay Module
  pinMode(relay2point1, OUTPUT);
  pinMode(blueHalo2, OUTPUT);   //blueHalo2 set as output to activate Blue Halo on pushButton2
  pinMode(greenHalo2, OUTPUT);  //whiteHalo2 set as output to activate Red Halo on pushButton2
  pinMode(whiteHalo2, OUTPUT);

  digitalWrite(relay2, LOW);  //set initial state of realy2 to OFF
  digitalWrite(relay2point1, LOW);
  digitalWrite(blueHalo2, HIGH);  //set initial state of blueHalo2 to ON
  digitalWrite(greenHalo2, LOW);  //set initial state of greenHalo2 to OFF
  digitalWrite(whiteHalo2, LOW);  //set initial state of whiteHalo2 to OFF
}

void loop() {
  buttonPoll = digitalRead(pushButton1);
  if (buttonPoll == 1) {
    delay(50);
    buttonPoll = digitalRead(pushButton1);
    if (buttonPoll == 0) {
      state = old + 1;
    }
  } else {
    delay(100);
  }
  switch (state) {
    case 1:
      digitalWrite(redHalo1, HIGH);
      digitalWrite(blueHalo1, LOW);
      digitalWrite(relay1, HIGH);
      old = state;
      break;
    default:
      digitalWrite(redHalo1, LOW);
      digitalWrite(blueHalo1, HIGH);
      digitalWrite(relay1, LOW);
      old = 0;
      break;

      buttonPoll = digitalRead(pushButton2);
      if (buttonPoll == 1) {
        delay(50);
        buttonPoll = digitalRead(pushButton2);
        if (buttonPoll == 0) {
          state = old + 1;
        }
      } else {
        delay(100);
      }
      switch (state) {
        case 1:
          digitalWrite(blueHalo2, LOW);
          digitalWrite(greenHalo2, HIGH);
          digitalWrite(whiteHalo2, LOW);
          digitalWrite(relay2, HIGH);
          digitalWrite(relay2point1, HIGH);
          old = state;
          break;
        case 2:
          digitalWrite(blueHalo2, LOW);
          digitalWrite(greenHalo2, LOW);
          digitalWrite(whiteHalo2, HIGH);
          digitalWrite(relay2, LOW);
          digitalWrite(relay2point1, HIGH);
          old = state;
          break;
        default:
          digitalWrite(blueHalo2, HIGH);
          digitalWrite(greenHalo2, LOW);
          digitalWrite(whiteHalo2, LOW);
          digitalWrite(relay2, LOW);
          digitalWrite(relay2point1, LOW);
          old = 0;
          break;
      }
  }
}
diagram.json
{
  "version": 1,
  "author": "Anonymous maker",
  "editor": "wokwi",
  "parts": [
    { "type": "wokwi-arduino-mega", "id": "mega", "top": 0.6, "left": -3.6, "attrs": {} },
    { "type": "wokwi-relay-module", "id": "relay1", "top": -105.4, "left": 374.4, "attrs": {} },
    { "type": "wokwi-vcc", "id": "vcc1", "top": -277.64, "left": 355.2, "attrs": {} },
    { "type": "wokwi-relay-module", "id": "relay2", "top": -172.6, "left": 374.4, "attrs": {} },
    {
      "type": "wokwi-pushbutton-6mm",
      "id": "btn2",
      "top": -107.8,
      "left": 240,
      "attrs": { "color": "green" }
    },
    {
      "type": "wokwi-pushbutton-6mm",
      "id": "btn3",
      "top": -59.8,
      "left": 240,
      "attrs": { "color": "green" }
    },
    { "type": "wokwi-relay-module", "id": "relay3", "top": -239.8, "left": 374.4, "attrs": {} },
    {
      "type": "wokwi-led",
      "id": "led1",
      "top": 27.6,
      "left": 477,
      "rotate": 90,
      "attrs": { "color": "blue" }
    },
    {
      "type": "wokwi-resistor",
      "id": "r1",
      "top": 42.35,
      "left": 412.8,
      "attrs": { "value": "1000" }
    },
    {
      "type": "wokwi-led",
      "id": "led2",
      "top": 46.8,
      "left": 477,
      "rotate": 90,
      "attrs": { "color": "red" }
    },
    {
      "type": "wokwi-led",
      "id": "led3",
      "top": 66,
      "left": 477,
      "rotate": 90,
      "attrs": { "color": "blue" }
    },
    {
      "type": "wokwi-led",
      "id": "led4",
      "top": 85.2,
      "left": 477,
      "rotate": 90,
      "attrs": { "color": "green" }
    },
    {
      "type": "wokwi-led",
      "id": "led5",
      "top": 104.4,
      "left": 477,
      "rotate": 90,
      "attrs": { "color": "white" }
    },
    {
      "type": "wokwi-resistor",
      "id": "r2",
      "top": 61.55,
      "left": 412.8,
      "attrs": { "value": "1000" }
    },
    {
      "type": "wokwi-resistor",
      "id": "r3",
      "top": 80.75,
      "left": 412.8,
      "attrs": { "value": "1000" }
    },
    {
      "type": "wokwi-resistor",
      "id": "r4",
      "top": 99.95,
      "left": 412.8,
      "attrs": { "value": "1000" }
    },
    {
      "type": "wokwi-resistor",
      "id": "r6",
      "top": 119.15,
      "left": 412.8,
      "attrs": { "value": "1000" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo1",
      "top": -105.6,
      "left": 268.8,
      "attrs": { "text": "pB2" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo2",
      "top": -57.6,
      "left": 268.8,
      "attrs": { "text": "pB1" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo3",
      "top": 38.4,
      "left": 518.4,
      "attrs": { "text": "bH1" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo4",
      "top": 57.6,
      "left": 518.4,
      "attrs": { "text": "rH1" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo5",
      "top": 76.8,
      "left": 518.4,
      "attrs": { "text": "bH1" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo6",
      "top": 96,
      "left": 518.4,
      "attrs": { "text": "gH1" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo7",
      "top": 115.2,
      "left": 518.4,
      "attrs": { "text": "wH1" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo8",
      "top": -220.8,
      "left": 508.8,
      "attrs": { "text": "r1" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo9",
      "top": -163.2,
      "left": 508.8,
      "attrs": { "text": "r2" }
    },
    {
      "type": "wokwi-text",
      "id": "legendservo10",
      "top": -86.4,
      "left": 508.8,
      "attrs": { "text": "r2p1" }
    }
  ],
  "connections": [
    [ "relay1:IN", "mega:3", "green", [ "h0" ] ],
    [ "vcc1:VCC", "relay1:VCC", "red", [ "v0" ] ],
    [ "vcc1:VCC", "relay2:VCC", "red", [ "v0" ] ],
    [ "btn3:2.l", "mega:2", "green", [ "h0" ] ],
    [ "mega:4", "btn2:2.l", "green", [ "v0" ] ],
    [ "mega:GND.1", "btn2:1.l", "black", [ "v0" ] ],
    [ "mega:GND.1", "btn3:1.l", "black", [ "v0" ] ],
    [ "mega:GND.1", "relay1:GND", "black", [ "v0" ] ],
    [ "mega:GND.1", "relay2:GND", "black", [ "v0" ] ],
    [ "vcc1:VCC", "relay3:VCC", "red", [ "v0" ] ],
    [ "mega:5", "relay2:IN", "green", [ "v0" ] ],
    [ "mega:6", "relay3:IN", "green", [ "v0" ] ],
    [ "mega:GND.1", "relay3:GND", "black", [ "v0" ] ],
    [ "led1:A", "mega:35", "green", [ "h-86.4", "v18" ] ],
    [ "led2:A", "mega:37", "green", [ "h-86.4", "v8.3" ] ],
    [ "led3:A", "mega:39", "green", [ "h-86.4", "v-1.15" ] ],
    [ "led4:A", "mega:41", "green", [ "h-86.4", "v-10.85" ] ],
    [ "led5:A", "mega:43", "green", [ "h-86.4", "v-20.3" ] ],
    [ "led1:C", "r1:2", "green", [ "h0" ] ],
    [ "led5:C", "r6:2", "green", [ "h0" ] ],
    [ "led4:C", "r4:2", "green", [ "h0" ] ],
    [ "led3:C", "r3:2", "green", [ "h0" ] ],
    [ "led2:C", "r2:2", "green", [ "h0" ] ],
    [ "mega:GND.5", "r6:1", "black", [ "v0.95", "h45.4" ] ],
    [ "r6:1", "r4:1", "black", [ "v0" ] ],
    [ "r4:1", "r3:1", "black", [ "v0" ] ],
    [ "r3:1", "r2:1", "black", [ "v0" ] ],
    [ "r2:1", "r1:1", "black", [ "v0" ] ]
  ],
  "dependencies": {}
}