The feature to display the dropdown of the menu that is assigned to Top menu location is not available on the theme. The dropdown feature can only be displayed in the Primary menu location and as much as we would love to help you on this, we are unable to do so as it requires higher code customization.
However, you can achieve what you want and for this you can always consider the professional developer.
To hire the developer, please follow below-given link:
The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.