It's just like additional keyboard, Thomas,video is not really needed...
I mapped hot-keys for things I use all the time as I see fit, so I do not have to use my regular keyboard which is under my desk (on the slider).
It is also nice cuz all of them are on a very small space, so I do not have to move my hand a lot (nice for my wrists in this old age of mine,

)
Besides that, saves my keys from beeing destroyed,

, it is actually a gaming device, so keys are more robust.
Here is a screenshot of SILO setup (it is using drivers and setup software for previous model which is N-40).
Hope this helps
P.S. I also highly reccomend it for playing Quake