The dropdown menus follow the convention followed by the Bootstrap CSS framework. As you can see here, the dropdown opens onclick and the parent node is always “#”. That allows touch screen users (such as those on tablets and mobile phones) to utilize the menu by tapping on the parent menu node (since there is no “hover” on touch screens!).
However, many users/webmasters prefer that the main node also be linked to a URL. That is why we’ve introduced this as an option in our Pro version. See this screenshot: https://prntscr.com/d5brg2 This is the option that allows you to enable the parent node for dropdown menus.