One google apps script for 2+ tables?

Question

Google Apps Script

I want one script to be executed in several tables (ctrl+c, ctrl+v - already in use)

Answer 1

Instead of the usual

var ss = SpreadsheetApp.getActiveSpreadsheet();  //Текущая таблица

use one of the options

var ss = SpreadsheetApp.openById(id); //открытие сторонней таблицы по id
//или
var ss = SpreadsheetApp.openByUrl(url);//открытие сторонней таблицы по url

And then work with ss as with a regular table