With you having a water view room booked you can request any building. So you could request Trinidad North or Martinique and be extremely close to OPR and the main pool. Half of the Martinique buildings have standard rooms so I would link your reservation with your friends and mark them as "traveling with ". Then have both of you request Martinique.
Thank you. We both called today and requested to be near each other (same building) and for Martinique. She was told that we would be put on the same floor/same building and that Martinique was noted but not guarenteed. The lady I talked to suggested putting Martinique as my first request, then marked my friend as adjoining, meaning we wanted to be near each other. Hopefully it works!