Keyboard/gamepad navigation for dynamic UMG widgets

Does keyboard/gamepad navigation work for dynamic UMG widgets?

I am adding buttons to a scrollbox, and I am unable to use keyboard or gamepad to navigate.
When I set focus to a specific widget, keyboard navigation causes it to lose focus, but no other widget gets focus.

Is there any way to use define the Navigation section for dynamically created widgets? Seems read-only…

Thanks For Any Help