Extended arpeggiator command?

The limit of current arpeggiaton command is forward through three notes and only 15 semitones above root note.

How about 4 notes forwards, backwards and pingpong…and larger note range? Arps could jump 5 octaves or whatever?

I know it can be done with phrases, probably doesnt make much sense to expand the arpeggiator command like that, would be too wide.