The legend - can you feel it
Ron Burgundy :
Brick, I've been meaning to talk to you about that. You should find yourself a safehouse or a relative close by. Lay low for a while, because you're probably wanted for murder.
In order to acquire the add-ons, all you need to do is edit your existing pledges. Increase your pledged amount by the price of the add-ons and let us know through a survey at the end of the campaign will do the trick.