Using Scroll Box by dragging mouse, not by actual scroll bar?

Development Programming & Scripting Blueprint
1

Is there a way to do this? I am trying to make a scroll box on my pop up UI for VR and want to be able to use the pointer to aim it at any of the buttons and have the ability to scroll, not just by using the scroll bar itself. Doing everything currently in the Widget Blueprint.

Thanks!

2

I can get it work using this Unreal Engine 4 Tutorial: Inventory Scroll Box Without Scroll Bar - YouTube But I need the widget to be on an actor, and its not working for some reason. Only when I make it so its on the UI of the viewport.