I have seen things to link list boxes and/or combo boxes to forms such
that when you select an item in the list (or combo) box the form moves
to the matching record.
One example (by Allen Browne) is here:
Using a Combo Box to Find Records
http://allenbrowne.com/ser-03.html
What I have not seen is the reverse: when you use the form's record
navigation buttons to go to the next or previous record, how do you
update the selection in the list (or combo) box?