using the pads to trigger a live set or patch

Do you know what the favorite-banks are?? If you found a patch or liveset that you like a lot you can store it as a favorite. Up in the right corner of the pads you got something called BS/Favorite.

If you use that mode you can choose among your favorites with the pads.

ah cool, yeah i know how to use favourites, so that should be handy to do. thanks.

Also, in single or live mode sounds can be organized into user groups with for banks a 16 sounds. You have a tab on the bottom of the screen in either mode. You assign your favorite sounds to those empty slots and you set the pad function for patch select. There is a dedicated button for this next to the pads. I think it's called user group. When you are inside the user group, the pads will directly select on of the 16 sounds inside the currently selected user group.
It's clearly described in the manual if you look what the pads do. It's a separate topic in the manual (05: Pads).