Around here 4-H western pleasure is pretty simple. They were asked to walk, trot, and canter (unless you were showing novice, then just walk trot), and back a few steps (make sure you are backing straight, they pay attention to this!). Trail we were usually asked to trot around barrels (like trees) get mail out of a box, go over a tarp, and cross a 'bridge', at varying gaits. It sounds like you are showing novice, and if that's the case we were never asked to pivot, open a gate, or other more advanced stuff.
We were also required to showmanship at every show. Make sure if this is the case for you guys, that you are prepared for this.
HOWEVER, 4-h rules vary from state to state (and county to county within reason) so the best person to ask would be your 4-H leader.
Edit: By "you" I meen your daughter and her horse :)