Currently the sequencer will always start at position one. It is possible however to change the end point of the sequencer. It would extend the usefulness of the sequencer enormously it were also possible to change the starting point of the sequencer. If for instance you have a long sequence of 40 steps you could then isolate part of it (during performance?) in smaller 4 step sequences.
To take that further: if you could make start and end point things that could modulated in column 13-16.......