Viewport: support dropping object-data to create instances

This allows orphan object data for example (meshes, curves, etc)
to be dropped into the 3D View from the outliner,
creating a new object instance.

Previously the only way to do this was to add the same type of object
then swap it's data through the ID selector drop-down.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/editors/object/object_intern.h b/source/blender/editors/object/object_intern.h
index 50825ae1ae4..99e139b823e 100644
--- a/source/blender/editors/object/object_intern.h
+++ b/source/blender/editors/object/object_intern.h
@@ -117,6 +117,7 @@ void OBJECT_OT_speaker_add(struct wmOperatorType *ot);
 void OBJECT_OT_hair_add(struct wmOperatorType *ot);
 void OBJECT_OT_pointcloud_add(struct wmOperatorType *ot);
 void OBJECT_OT_collection_instance_add(struct wmOperatorType *ot);
+void OBJECT_OT_data_instance_add(struct wmOperatorType *ot);
 
 void OBJECT_OT_duplicates_make_real(struct wmOperatorType *ot);
 void OBJECT_OT_duplicate(struct wmOperatorType *ot);