The HUD slider can only be created by dragging a parameter from the Parameter pannel of a node into the Scene View window.

Can we customize our own HUD slider or “legends” or dynamic diagram that will always appear on the same location on the Scene View window regardless the view type of the window (i.e. regardless if it's a perspective or top or front view)?

For example, what if I want create a small wind-rose like diagram that will always appear at the top left corner of a Scene View window that summarizes the percentage of surfaces facing different direction, and it will update dynamically once the geometry has changed.

May I ask if its possible and how to do that?

(see image below)

- Ji