ControlP5 controller dynamically added when mouse clicked from class

Hi Everyone, I am on beginner level in processing and have been writing a code using ControlP5, yet having issues how to add a button in a class triggered by mouse click. Found this sourcehttps://forum.processing.org/one/topic/having-a-controlp5-controller-inside-a-class.html, which nearly answers my question, without mouseClick. I don't use processing in another environment (so eliminated static+PApplet parts completely). Was also checking the ControlP5 examples, but none of them use ControlEvent in class (or I couldn't find it with my beginner level). I have a solution, but outside of class. The final aim is to collect values assigned to the same objects coming from different controllers. And later on, want to compare those objects based on values. Right now, I only have one controller (textfield, but will create more) "assigned" to objects. Hope I make sense. Any help/recommendation/advice very much appreciated. Thank you!!! first part

import controlP5.*;
Object obj=new Object();
ControlP5 cp5;

int c=0; //object counter
int a=0; //attribute counter

PImage img;
ArrayList<Object> objSet=new ArrayList();
ArrayList<Textfield> t =new ArrayList();
ArrayList s=new ArrayList();
ArrayList temp=new ArrayList();

void setup() {
  size(640, 600);
  img= loadImage("room1.jpg");
  img.resize(320, 300);
  cp5=new ControlP5(this);
}

void draw() {
  background(0);
  image(img, 0, 0);
  //println(objSet.size());
  for (int i=0; i<objSet.size(); i++) {
    Object obj1=(Object) objSet.get(i);
    obj1.display();
  }
}

void mousePressed() {
  if (mouseX<320 && mouseY<300) {
    obj.press();
    a=0;
  }
}

void mouseReleased() {
  if (mouseX<320 && mouseY<300) {
    obj.release();
    objSet.add(obj);
    t.add(cp5.addTextfield("object"+c, 330, 10+c*100, 200, 20)
      .setId(c));
    c+=1;
  }
}

void controlEvent (ControlEvent theEvent) {
  println("got an event from controller id:" +theEvent.getId()+":"+ theEvent.getStringValue());
  temp.add(theEvent.getId()); //collected Id
  s.add(theEvent.getId(), theEvent.getStringValue()); //textField into arrayList
  int tempC=theEvent.getId(); //actual Id
  checker(s,temp,tempC);
  println(s);
}
//you have to fill in with data first, but responds to modification
ArrayList checker(ArrayList toFilter, ArrayList helperA, int helperN) { //removes false values
  int counter=0;
  for (int i=0; i<helperA.size(); i++) {
    if ((int)helperA.get(i)-helperN==0) {
      counter+=1;
      if (counter%2==0) {
        toFilter.remove(helperN+1);
        helperA.remove(i);
        counter=0;
      }
    }
  }
  return toFilter;
}

and the class itself: class Object {

  boolean done=false;
  //ArrayList<Object> objSet=new ArrayList();
  public ArrayList mouseV=new ArrayList();
  ArrayList<String> attributeN=new ArrayList();
  ArrayList attributeV=new ArrayList();

  Object () {
  }

  void press() {    //make first part of rect
    mouseV.add(new PVector(mouseX, mouseY));
    done=false;
  }

  void release() { //finish rect
    mouseV.add(new PVector(mouseX, mouseY));
    done=true;
  }


  PShape display() {
    PVector centroid= new PVector();
    PShape rect=new PShape();
    if (done==true) {
      noFill();
      stroke(0, 255, 0);
      for (int i=1; i<mouseV.size()+1; i+=2) {
        PVector v1= (PVector)mouseV.get(i-1);
        PVector v2= (PVector)mouseV.get(i);
        rect= createShape(RECT, v1.x, v1.y, v2.x-v1.x, v2.y-v1.y);
        shape(rect, 0, 0);
        centroid.x=(v1.x+v2.x)/2;
        centroid.y=(v1.y+v2.y)/2;
      }
    }
    return rect;
  }
}