Our system only displays one sign up button per slot, whether you enter a # wanted of 1, or a # wanted of 100. This is to keep the sign up page concise and easier to navigate. Once someone signs up for a slot, their name will be displayed, and if the # wanted is greater than one, the sign up button will display beneath the name. Once all spaces have been filled, the sign up button will disappear.
I hope this clarifies. Please let us know if you have further questions.