On version 4 of ckeditor there was the possibility to display a dialog box when creating a custom plugin, but on version 5 it is not possible ?

Ckeditor v4

CKEDITOR.dialog.add('', function (editor) {
  var dialog = {
  };
  return dialog;
});

CodePudding user response：

There's no UI component for dialog box in ckeditor 5 and they don't plan to create any.

It's recommend to use contextual 'balloons' instead.