You may list phases, create them manually as well as add notes to them.

Also I added xliff extended states support. I did this in a smart way - there is still two-state button, which selects extended state depending on kind of the current phase (needs-translation/translated for translation phase, needs-translation-review/signed-off for review phase),
with drop-down menu to select specific state manually.
So what for translator is ok (translated), for reviewer is not (i.e. rendered in italics), and needs to be signed-off.

This allows us to achieve something interesting: we now able to see in which phase (and hence by whom) the translation unit was modified last time. This info is shown in Metadata toolview (previously known as 'Message Context').
