My users would like the capability to rotate the 3D symbology of Feature/Scene Layers in a WebScene/Web Appbuilder app on Portal for ArcGIS so that the 3D icon will face at the direction they desire, on a per-feature basis.
Can you explain more about the use case and some details. E.g. what do the icons represent. Is the direction in the world space, e.g. north/west (or degrees like on a compass?) or screen space, e.g. up/down/left/right... ? You want to rotate the icons based on an attribute right (similar to what you can do with 3d object already)?