Passing context class with GTSpotter

I'm extending Spotter and wonder how I can achieve the following.

I have some domain model, for the sake of example let's imagine Item" and "Container" classes; where "Container" can contain other Items or Containers.

Then I have a custom Spotter wrapper class that shows the initial Spotter cadidates and can perform something with the spotted objects.

Object subclass: #MySpotterModel slots: { #container. #something }.

MySpotterModel>>doSomethingWith: item

MySpotterModel>>spotterContentFor: aStep

So far so good. Now the problem is, that I would like to "dive" (right arrow) into a container further, so there would be (notice that I am already duplicating behavior)

So my question is ... how can I "pass along" a custom instance?

Thanks,

Peter