Just so you know the DTII has the capability of transposing all notes on a track by holding a trig and TRK at the same time, and has the ability of transposing all notes on a page by holding Page and the trig at the same time.
However, it does not allow you to do this by octaves (what the thread starter was on about.) Because Elektron prevents the use of FUNC snap functionality when setting/editing trigs.
So be sure if you are buying the box you know the limitations of the current firmware and are happy with them before spending more money.