Why not just use up/down arrow key to move to the desired record? You could also use record selector buttons on the far left but might get confused by highlighting a bunch of rows, although the active record will be bordered by a coloured line. If you've prevented selecting a record via mouse then your only other options are keyboard moves or switch to continuous form view and add a button if you don't mind a button on every record.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.