Arbitrary number of breadcrumbs in tags

At the moment you may only show a single breadcrumb per tag, if the tag is a descriptor and it has a parent above it (whether than parent is concept, descriptor, or plain). Observe.

Despite the full (desired) tree being like so.

I assume this is related to my other request to allow inheriting slots a few levels up. Would it be possible to add a setting to "look up" a number of rem above the one used as a tag and if the above rem are also descriptors, add them to the tag, rather than just finding the one parent and stopping there?