LCD + 1Sheeld // get cursor position

Other Hardware Displays
1

Hello

I'm a newbee in Arduino and code in general. I'm trying to simply display texte to a LCD through the keyboard shield of the 1Sheeld.
Mostly, it works great !

I'm stuck at coding a smooth way to delete characters, and especially to go up to the first line when I have deleted all the characters (one by one) one the second line.

I would love to get the coordonate of the cursor to make it go to the first line when the second one is empty. Any way to do that ?

Here is what have so far :

void setup () {
  OneSheeld.begin();
  lcd.begin(16, 2);
  lcd.print("Welcome to" );
  lcd.setCursor(0,1);
  lcd.print("Girls In A Band");
  delay(5000);
     lcd.clear();
 AsciiKeyboard.setOnButtonChange(*displayCharacters);
}

void displayCharacters(char data)
{
   
 if (data =='\b') {
  lcd.rightToLeft();
  lcd.print(" ");
  lcd.leftToRight();
 }

// I want th cursor to go back to the first line when the second one is clear, when the cursor is at (0,1)

 else if ((data =='\b')&&(I'D LIKE TO GET CURSOR POSTION HERE)  {
  lcd.setCursor(16,0);
  lcd.rightToLeft();
  lcd.print(" ");
  lcd.leftToRight();
 }

 else if (data =='\n'){
  lcd.setCursor(0,1);
}

else {
lcd.write(data);
  }
 
}
void loop(){
}

I hope i'm clear... Every bit of help would be much appreciated.

Thanks !