Edit the Thumb in a Scrollbox?

Hi

See this thread on the forums.

I’m trying to edit the ‘Thumb’ image in a UMG Scrollbox’s scrollbar. I want the thumb image to be a fixed size, but it always stretches out and resizes over the length of the Scrollbox itself depending on how many items are in the Scrollbox’s list of entries.

Is there a way to force the thumb to be a certain size?

According to Nick Darnell over at the Unreal Engine forums:

The scrollbar in slate is not designed to behave that way, so you’ll need to make a new kind of scrollbar, and modify UMG’s scrollbox to expose setting a custom external scrollbar widget to your new custom scrollbar.

I will post a reply if I find out how exactly this can be done.
For now, the original question is resolved.