*You could try uing the same 4 beat style and use the RightClick, Bar Settings, to change the beat to 2 per bar at the right place. Don't forget that you have to do the same again to change it back to 4 at the appropriate place if needed.

*You might also be able to invoke a separate 2-beat style at that bar, but the accompaniment is likely to be different than what the original 4-beat style was.

HTH,

--Mac