I was planning to make a wiki about this mod on Wikia, but I'm a bit busy right now and cannot finish it. Will work on it when I have time. :) (Or maybe after the mod is settled a bit. Some significant changes have been planned.)
About the magic wands, they are like the deconstruction planner. Drag on the screen to select objects, and the effect will be applied once you release the mouse button. You can also hold SHIFT to trigger its second effect (alternate mode). They are configurable via the creative menu.
To make infinite objects, there are currently multiple options. One is to use the Creative Chest. If you want to just create some specific items, you can use the Autofill Requester Chest (v0.2.6). If you have the item on your hand and want to duplicate it, you can put it in a Duplicating Chest.