If you override slider’s *OnMouseCaptureBegin *you can set the cursor to the desired one. Unfortunately, as soon as you start dragging, it gets overridden (by the widget’s capture?) with the default cursor for this operation. Doing it during Tick makes it flicker from *Set *to Default
The default cursors can be found in the Engine - User Interface, unfortunately the ResizeLeftRight (two horizontal arrows that you see during sliding) is not there; it would be great if Epic exposed it (and up-down, south-east, south-west) as well. Alternatively, we’d need more granular control over widget’s cursor states if possible.
Consider filing a feature request. Feel free to quote me.
“I’ll tap out and let someone else jump in on this one haha.” - same here 