Hyperlink on buttons ?

Hi,

I’m currently trying to use all the features from the Elements Features.

I have some little problems with few things :

* Can i put an hyperlink ? I’ve found how to put a simple link with some parameters but no hyperlink with link to text replacment.
* Can i put an hyperlink on a button with a text ?
* For the “Carousel” feature, what size images must have ?

Thanks in advance for your help ! 🙂