Now that I've thought about it for 90 seconds (not fully-formed idea), if one were to have an anonymous multi-sub, it ought to be constructed from a list of *signature*, *body *pairs.
And/or, any non-finalized sub could have a method to add another *signature, body* to its dispatch list. apologies if this discussion is already captured in a design doc, I am posting this without having read much of the past. and now, back to our regularly scheduled programming. -y