</ul>
</li>
-<li>Click \b Apply or <b> Apply and Close</b> button to confirm the operation.</li>
+<li>activate <b>Preview</b> checkbox to show the result of transformation in the viewer </li>
+<li>click \b Apply or <b> Apply and Close</b> button to confirm the operation.</li>
+</ul>
</ol>
<br><b>See Also</b> a sample TUI Script of a \ref tui_translation "Translation" operation.