Question Accessing "Display" Option from UI Builder in C#?

Hi, I'm very new to the newer versions of Unity (as in, I've gone from Unity 5 to 2021...) and I'm trying to build a menu in the UI Builder, but I'm having a few problems showing and collapsing GroupBoxes.

I've worked out that the Display option under the Display foldout is what I need, but I can't find any available interface for this, at least from Intellisense and the API documentation.

I've worked out how to get elements by name, but how exactly do I control this Display setting from a script? Is it under a different name?

 

To change style values you need to access the through VisualElement's style property. In this case you can use this to show it:

myElement.style.display = DisplayStyle.Flex;

And you can use this to hide it:

myElement.style.display = DisplayStyle.None;

 

ah, thank you, spent ages trying to work out how this is done!