Implementing Next & Previous buttons

Привет Igor! I am trying out your plugin for one of my new projects (sorry, no link since i am working on it locally with MAMP) and it is absolutely crucial for me to implement next and previous slide buttons, overlaying the main slide (one arrow on each end of the main slide slide).

I’ve been looking everywhere for clues or an example, also gutted the skins included to see if i found a hint in there, but had no success… Anyhow, I would really appreciate if you coud point me in the right direction to get this solved, I would like to adopt your plugin for the next projects in line also!

Thanks in advance for your time and such a great plugin!

http://wordpress.org/extend/plugins/len-slider/