It appears that a Change Owner can change the Stage/Status of a change by editing the change record and choosing the required Stage or Status from the drop-downs. However when he is simply viewing the change (eg while it is in the Submission stage", the "Status Actions" menu is empty and the two action buttons are greyed out.

Should the change owner not be able to move the change to the next stage using these methods (ie without having to actually edit the record)? It works for the change manager, but now the change owner.