JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdn.ckeditor.com/4.4.7/standard/ckeditor.js"></script>
<select id="tipe">
  <option></option>
  <option value="Template_1">Template 1</option>
  <option value="Template_2">Template 2</option>
</select>

<textarea class="ckeditor form-control html" id="motivo" name="motivo" rows="6" data-error-container="#editor2_error"></textarea>

JavaScript

var templates={};
templates["Template_1"]="<p>This is the first template</p>";
templates["Template_2"]="<p>This is the second template</p>";
$('#tipe').change(function(){
    var template = $(this).val();
    CKEDITOR.instances["motivo"].setData(templates[template])
});