As already mentioned for the editor:
Quote:
What you can't do is adding only th pipeline without a camera using it.
But if you add a camera, and select it in the scene editor, you have the pipeline settings for it in the Node Property widget.
There you can specify the pipeline for this camera. The active camera can be selected within the toolbar.
You have to differentiate between resources and scene graph nodes. If you add a pipeline to the resources, it is available to be used by a scene graph node (actually only Camera scene graph nodes can use a pipeline resource ), but if no scene graph node is using it you don't have to load it if your code won't use it dynamically. This is the case in the samples. The pipelines are added to the resource manager of Horde3D, but only one pipeline is actively used by the single camera. You can switch the pipeline in the samples by pressing F3.
Since the editor is used to create scene graph files, where only scene graph nodes will be configured, you can't add a resource without having a scene graph node using this resource.
So as usual I may misunderstood your question, but perhaps my comment will help you finding out the rest of the answer you're searching for by yourself.