The sequencer window contains all the options that you may expect in a MIDI sequencer: event editing, filtering, batch modifications, recording, undo changes. What other sequencers don't have is shown below the generate button. One Man Band can add auto-accompaniment based on chords/style/variation events in the sequence and add auto-harmony based on notes and multivoice events. The sequence with chord/style/variations/multivoices can be entered in the Sequencer Window or recorded in the Live Window.
Piano Roll View
Staff View