Start behind the first column...

Other Hardware Displays
1

So I've been trying to make a function for scrolling the text on a 16x2 with I2C and I got it working, but i'd want the string of characters to start behind the first column, when it gets to the second row, to give it a "scrollier" effect. I thought about setting the cursor to something like (-col, row) but... it doesn't really work. Here is the code:

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();
}

void loop() {
  // put your main code here, to run repeatedly:

  lcdscroll("abcdefgh");
}

void lcdscroll(String printvar) {
  int sizevar = printvar.length();
 int minussizevar = (0 - sizevar);
 int y = 300; 
start:
  for (int i = 0; i < 32; i++) {
    if (i >= 17) {
      for (int j = 0; minussizevar < j < 17; j++) {
        lcd.clear();
        lcd.setCursor(j, 1);
        lcd.print(printvar);
        delay(y);
        if (j == 16) {
          goto start;
        }
      }

    }
    else {
      lcd.clear();
      lcd.setCursor(i, 0);
      lcd.print(printvar);
      delay(y);
    }

  }
}

Can anyone please help me?
Thanks a lot.