Rendering a structure's children.

I've been writing a couple of Pier components, let's call them StructureA and StructureB (both subclassed from PRStructure), and each has a corresponding view (answered by #viewComponentClass), ViewA and ViewB (subclassed from PRDefaultView). Now I find I want to embed a 'B' inside of an 'A', so that ViewB gets rendered inside of ViewA. I've added a StructureB instance as a child of the StructureA instance. What I can't figure out is, from within ViewA>>renderContentOn:, how do I go about getting hold of an instance of ViewB, so that I can pass it as an arg to "html render: ... " ? (I could instantiate ViewB myself, but presumably I would at a minimum have to set the context ivar to something, but I know not what.) Or am I going about this the wrong way? Cheers, Nick Brown