There is no simple way to do that in FileMaker.
Arranging records in columns instead of rows would require a series of portals placed side by side to produce the columns. There'd be only as many columns as you create portals and the closest you'd come to the horizontal scrolling would be to use portal filters that control what records appear in each column and you'd update a field used in the filter expressions to get the records in column 3 to appear in column 2, to scroll sideways one column.
If you are using Form view to view one record at a time, I suggest clicking the "book" control at upper left to move forward and back through your records.
Hmmm, it might also be simulated with a 3 panel slider and script triggers if you sized that slider to fill the screen...