I often have a need for a song to have a pad going on for many measures. I have tried the different pad sounds but cannot find a way to keep the pad playing for more than 3 or 4 measures. I realize you are using samples so maybe that limits how long it can last. However, could there be a pad sound that is steady volume from beginning to end so that you cannot hear where one pad starts and one ends? That way, if I needed a chord held out for 8 measures, I could just put eight of the same chord in a row.
I seemed to have found the answer to my own question. I needed to change the bass sound to orchestral - bowed bass. This allows me to hold a pad sound by creating multiple measures of the same chord.