When your interface navigates to next step, create a new BreadcrumbItem and add it to BreadcrumbsView. (After 0.2.0, you can implement your own IBreadcrumbItem to use.)
Use removeItemAfter(int) or removeLastItem to remove items or last item.
Listen events
You can set a callback for BreadcrumbsView to receive item click/changed events.
To simplify events, I recommend to use DefaultBreadcrumbsCallback :
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