I have read the section on quantizing in the piano roll window. But it never seems to work the way I expect it to. Notating three more or less even notes and using the quantize popup window generally makes thing worse, often moving notes under each other or other such bizarre results. Is it possible to quantize note lengths at the same time? And can you notate and quantize at the same time? I haven't investigated how to do this in the score window, yet.