no idea if the eurorack module has had features taken out or not. (id say not, given the source code still has it in)... I can tell you questionmark is a kind of clocked noise source.
the triple sine is also in the axo firmware, but it looks like Johannes didn't expose the macro oscillators (which the x3 sine is an example of)
sorry, I don't understand what you mean...
sorry, at this time I'm not planning on making any changes to the MI objects, as we are changing how they are implemented in the next release.