How to make animation for treeview in UMG?

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Hi, It’s first time to use tree view in Unreal.
I made that structure in my UMG, and I want to make black button move smoothly when I click another black one.

I found a gif sample (* it’s not from unreal engine)

treeview sample

but there’s no information for applying animation in tree view. :joy:
Is anyone who help this problem? :grinning: