Thanks for the updates elarifr! I will test them asap and give you feedback.
I just installed the new version, but I'm a bit overwhelmed at the options. The layout in the backend is rather complex and confusing and not very intuitive. Lots of misplaced form elements as well. But that aside, It's a very powerful version for those who want to have total control from the backend.
I think I found a bug: if you select to not show thumbnails, the slider shows some kind of transparant placeholder anyway.