This was one of the first GitHub issues I created; users could not grab and scroll the popup. Well I finally fixed it! First I had to set the buttons to Pass, not Stop: that allowed the scroll container to read inputs even behind buttons. Then I added connections for scrolling start and stop and a global variable that simply states whether the screen is being scrolled. Finally, I amended the button press connection to say that if the user is scrolling, it should just remove focus from the button; now it only counts the button click when you aren't scrolling. As a bonus, it even allows you to grab scroll with the mouse!