Step recording is pretty easy.
Just go to the graphic editor and click on the horizontal keyboard at the top to enter step recording mode.
Click where in the track you want to start step recording and this is where it will start from. (duh
).
Play a key (or three) on your device and the notes will appear in the graphic editor window and move along to the next step (governed by the note value selected in the graphic editor).
OR
another easier way....
Select the pencil tool and click on the piano roll on the left running vertically and notes will appear that are governed by the note value selected.
To enter a rest just click on the rest button and the step will move on to the next.
(not that it's step recording but) you can just draw on the graphic editor window and if you don't like the note, click it again and it disappears.
(this may work in metro 5 too......I'm currently in OSX so I can't confirm it now).
scoot.