Choose the pledge level you would like, and then increase your pledge dollar amount by an amount equal to the items found in the add-ons section. You can order more dice, extra copies of the books and a lot of other cool stuff in this fashion. We'll have more official communiation about these options as we go forward.
Yes and no. Please message me and let me know that you already own that book. What I will do is send you 'Feats Reforged: Vol II, the Advanced Feats' instead. Volume II has not been released yet. Another perk of backing this project.
Don't see the answer to your question? Ask the project creator directly.