Category Dropdown Menus!?

[adrweb]

I feel stupid having to ask this, but I cannot figure it out :/

How do I make my product category sub menus to appear as a dropdown menu from the Main menu?

Surely I don't have to purchase an extension to achieve this?

I'm using Joomla! 3.6.5 Stable and  Virtuemart 3.0.18

[jenkinhill]

So little information provided............

If you are using a Joomla menu for this then just find a menu module that suits your purpose on the JED

[adrweb]

I just figured it out 

So simple. Didn't have to install extension/module, just assigned the relevant category to a parent category.

Sorry. Brain not firing on all cylinders last night.