Once transposed, the steps will reflect the new note values when you check their value by touching a knob and not just show a + or - value. To check what the transpose interval is you follow the steps as you were to begin to transpose the sequence but not hit a pad. The interval will be shown by a lit pad on the "keyboard" and what octave it is in will be displayed by a flashing octave pad (in the usual manner used to indicate what octave the note-input keyboard is in).
Because it will display the notes as what is being played and not as + or - when transposed, what can be a bit confusing at times is when you transpose a pattern then save it, but forget you've saved the transposed pattern next time you recall it. Without checking if the sequence is in it's natural key I've recalled a sequence then gone nuts trying to work out why it's not matching the rest of the patterns in the project until I go to try and correct it by transposing it and find it's not set to middle C! Might seem like a bad idea to not have the note value show that it's been transposed, but at the same time, I find knowing the actual note being played on the step is way more helpful than having no idea what is supposed to be played (in most situations).