Settings-Dependent-Dynamuc-Drop-Down-Lists.gs

function onEdit(event) 
{

  // Change Settings:
  //--------------------------------------------------------------------------------------
  var TargetSheet = 'Main'; // name of sheet with data validation
  var LogSheet = 'Data1'; // name of sheet with data
  var NumOfLevels = 4; // number of levels of data validation
  var lcol = 2; // number of column where validation starts; A = 1, B = 2, etc.
  var lrow = 2; // number of row where validation starts
  var offsets = [1,1,1,2]; // offsets for levels
  //                   ^ means offset column #4 on one position right.
  
  // =====================================================================================
  SmartDataValidation(event, TargetSheet, LogSheet, NumOfLevels, lcol, lrow, offsets);
  
  // Change Settings:
  //--------------------------------------------------------------------------------------
  var TargetSheet = 'Main'; // name of sheet with data validation
  var LogSheet = 'Data2'; // name of sheet with data
  var NumOfLevels = 7; // number of levels of data validation
  var lcol = 9; // number of column where validation starts; A = 1, B = 2, etc.
  var lrow = 2; // number of row where validation starts
  var offsets = [1,1,1,1,1,1,1]; // offsets for levels
  // =====================================================================================  
  SmartDataValidation(event, TargetSheet, LogSheet, NumOfLevels, lcol, lrow, offsets);  
}