razer lachesis 5600dpi

good day to all! i treated myself to the v2 model of the razer lachesis with the 5600dpi - it's nice! however.. i'm struggling to work out how to bind my extra mouse buttons in games without having to sacrifice a keyboard key for it anyway?
i don't know if this is just how razers software works as this is my first experience as a razer user. anyone know if it's possible to bind a mouse button without sacrificing a keyboard key?

thanks in advance!

 

Greetings, vkbluu.

I would think that the Razer would have come with an installation CD, which contains the console for bindings. If not, then you might be able to find one at Razer Support.