I made my own breadcrumb output. Sure utilise whatever utilities SEAM provides but then do your own display/filtering mechanism.
Thanks for the reply; would you mind sharing some more specifics regarding your approach?
For example, one thought I've had is to include some additional breadcrumb information at the top of each of our pages.
The page template, which includes the breadcrumb trail, could then read this EL and alter the breadcrumb output accordingly.
I would be interested in any other approaches you might have to suggest.