Jdeveloper 12.2.1.3.0 full stack
Hello
We are using an hierarchy viewer to display a hierarchy of client groups.
For testing purposes we have added 100 top level groups.
The viewer is set to display 15 nodes per level.

When the display is Horizontal Start-to-End the viewer automatically displays navigation buttons to scroll through the dataset

However when the layout is set to Vertical top down the navigation arrows are not displayed, making it impossible to scroll through the dataset.

Is this normal, a bug or am I missing something ?
Regards
Paul