Have two scrolling lists that mimic each other

So I have two scrolling lists, List1 and List2. List1 can scroll vertically, List2 can do both vertical and horizontal scrolling. What I'd like is when List1 scrolls vertically, List2 mimics that movement exactly (The lists are aligned). When List 2 scrolls horizontally, there is no movement in List 1. Is this possible?

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