Exactly as i required.
I wanted to have 2 Add to cart button on my product page so my customer can access ever when they are bottom of my site.
I have used the app and it is excellent and very useful for conversions. I recommend it highly and its FREE!
The Shopping Nerds
This app is so simple! I totally recommend it. I'm really not sure why it's free (I hope it stays like that :) ), but try it and you'll see that it's working perfectly fine.