Standard Dropdown Animation Controls?

I’m using the standard Dropdown module that comes with Webflow, and I like it just fine.

My problem is with the lack of easing in this menu. Clicking on this element simply opens / closes the menu. I’d like to control that animation.

When I select it and click over to Interactions nothing shows up.

Am I missing something obvious?

Thanks in advance for your help.

A link to the work in progress follows.

Here is my public share link: https://preview.webflow.com/preview/ehw-00044eadddbe6aaba0248ab18dd5907c?utm_medium=preview_link&utm_source=designer&utm_content=ehw-00044eadddbe6aaba0248ab18dd5907c&preview=d58ad2da6a4e7ecae56674fcf672a196&mode=preview
([how to access public share link][2])