Hi rseemueller,
as said, is a very new feature and is not yet documented.
If you want to try it, please follow this steps:
In c4dOctane Live View, after loading the desired scene, go to Live View menu File/Export to Standalone.. and choose one of the three options to generate an .ocs or .orbx file:

After saving, close C4D, open Standalone, and in the Node Graph editor, right click in an empty area and, from the popup menu, choose Import and open the .ocs or .orbx file just exported from C4d.
You should see something like this:
Doble click the dark red node to entrer it and you should see something like this (right click on the Render Target node to start the render):
In the Nodegraph editor, right click in an empty area and, from the popup menu, choose Output/Render target output node:
and connect it to the Render target node, then click on the Scene tab in the upper right corner of the Nodegraph to go back to the main graph:
Now the dark red node that contains the entire scene has an output port in the bottom part. In the Node Graph editor, as before, right click in an empty area, but this time choose RenderJob/BatchRender Job:
Now connect the scene graph with one of the input pin of the Batch render Job and in the Node editor you can setup all the necessary options before starting the render:
If you have other scenes that share the same settings (number of frames, format ecc), you can import another scene, redo the steps for adding the output node and connect it to another pin of the same Batch Rendering Job node:
If the scene has different settings, create another Batch Render Job with specific setting and connect it to the differnt scene, then from the same menu choose RenderJob/Group:
Now everything is ready for rendering, you can right click on a Batch rendering Job node or on the Group node and choose Start render job:
A new window will pop up were you can remove some works, or override the output folder before starting the final batch render:
Happy batch rendering

ciao beppe