Making a joystick control for two servos to hold position

Projects General Guidance
25

Hello, im looking for some help here, im new to arduino and programming.I found this thread very useful and also Robins2 code for "Excavator". i just edit code to work like i want - normal movement of servo with joystick, but now i want to add this functionality to my code - holding position of servo arm while joystick get back to neutral. Original code of Robin2 works perfect but i dont know to implement it to my code. Here is my piece or art:

#include <Servo.h>
Servo servo[1];  // create servo object to control a servo
int potPin[1]={A0}; 
int potValue;     
int servodt=10; 
int servoPin[1]={9};
int pushbutton=1;
int servoValue[1]={1472};
void setup() {
 for (byte n = 0; n < 1; n++){
 servo[n].attach(servoPin[n]); 
 }
}
void loop() {
 readPotentiometers();
 moveServos();
 delay(servodt);
}
void readPotentiometers(){
   for (byte n = 0; n < 1; n++){
     potValue = analogRead(potPin[1]);                 
     potValue = map(potValue, 0, 1023, 544, 2400);
     
   if (potValue >= 1372 && potValue <= 1572 ) {           
       servoValue[1] = 1472;
       }
     
   if (potValue <= 1372 ) {
       servoValue[1] = potValue + 100;
       }
 
   if (potValue >= 1572 ) {
       servoValue[1] = potValue - 100;
       }
   
   if (pushbutton = 1 && potValue < 1372) {
       
   }
   }
     
}  
 void moveServos() {
 for (byte n = 0; n < 1; n++) {
   servo[n].writeMicroseconds(servoValue[1]);
 }
}

if (pushbutton = 1 && potValue < 1372) .... here i want to add code for hold position functionality, but i cannot figure it out how.
Can someone help me?