Collection duplication from Outliner: add a 'duplicate hierarchy' operation.

Point is, you may want to duplicate your set of collections, but not
duplicate all their objects.

Some notes:
* Am rather skeptical about the practice of using operator name to
define behavior of some common exec code. Imho, that should be a single
operator with an enum to refine its behavior (@cambpellbarton may also
have an opinion here?). Left it as-is for now, because this seems to be
used by other operators too in that code. :/
* @dfelinto, @pablovazquez, @billreynish am not so happy with current
names, but cannot find really good short ones either... Also, shouldn't
we move those into a dedicated `Duplicate` sub-menu?

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/editors/space_outliner/outliner_intern.h b/source/blender/editors/space_outliner/outliner_intern.h
index 0851d5ce9f4..5af8e2252ef 100644
--- a/source/blender/editors/space_outliner/outliner_intern.h
+++ b/source/blender/editors/space_outliner/outliner_intern.h
@@ -315,8 +315,9 @@ bool outliner_is_collection_tree_element(const TreeElement *te);
 struct Collection *outliner_collection_from_tree_element(const TreeElement *te);
 
 void OUTLINER_OT_collection_new(struct wmOperatorType *ot);
-void OUTLINER_OT_collection_duplicate(struct wmOperatorType *ot);
+void OUTLINER_OT_collection_duplicate_hierarchy(struct wmOperatorType *ot);
 void OUTLINER_OT_collection_duplicate_linked(struct wmOperatorType *ot);
+void OUTLINER_OT_collection_duplicate(struct wmOperatorType *ot);
 void OUTLINER_OT_collection_delete(struct wmOperatorType *ot);
 void OUTLINER_OT_collection_objects_select(struct wmOperatorType *ot);
 void OUTLINER_OT_collection_objects_deselect(struct wmOperatorType *ot);