//Add editor to folder
function example51() {
  var folder = DriveApp.createFolder("EXAMPLE51");
  folder.addEditor('brgablog@gmail.com');
}

//Add editors to folder & don't allow them to share it
function example52() {
  var folder = DriveApp.createFolder("EXAMPLE52");
  folder.addEditors(['brgablog@gmail.com',
                     'roberts.barrie@gmail.com']);
  folder.setShareableByEditors(false);
}

//Remove editor from folder
function example53() {
  var folder = DriveApp.createFolder("EXAMPLE53");
  folder.addEditors(['brgablog@gmail.com',
                     'roberts.barrie@gmail.com']);
  folder.removeEditor('brgablog@gmail.com');
}

//Add viewer to folder
function example54() {
  var folder = DriveApp.createFolder("EXAMPLE54");
  folder.addViewer('brgablog@gmail.com');
}

//Set access to Anyone with a link, and with Edit rights
function example55() {
  var folder = DriveApp.createFolder("EXAMPLE55");
  folder.setSharing(DriveApp.Access.ANYONE_WITH_LINK,
                    DriveApp.Permission.EDIT);
}