So, this feature has taken far too long to be implemented. Bild entfernt wegen fehlender Unterstützung für HTTPS. | Trotzdem zeigen
On a related note, the Spine>Instantiate
menu items from the right-click context menu of SkeletonDataAssets will be removed in the future (likely when Spine-Unity for Spine 3.5 is released). That was really the wrong menu for creating scene objects.