Hi this template does not support dropdown menu.
You will need to make extra css and js code to obtain your goal.
Looking to your templates\jf_texturia\index.php
please remove <?php mosShowListMenu($menuname); ?> to remove built-in menu.
then you can assign your menu to submenu position then you must create css and js to make it dropdown
joomfreak is not affiliated with or endorsed by the Joomla Project or Open Source Matters.
The Joomla logo is used under a limited license granted by Open Source Matters the trademark holder in the United States and other countries.