Must…customize…everything…
Funtionality
The Isku is all about customization, which is done mostly through Roccat’s in-depth yet intiuitve software. As a gaming keyboard, Isku is hellbent on making your gaming experience streamlined and efficient. Through the keyboard’s control panel, you can customize the Macro keys, the function keys, and the media keys, and you can even give secondary functions to the WASD region keys. Customization is now backed up by the Macro Live function, where you can assign macro keys on the fly without having to resort to the control panel. Just pess the Macro Live button, press the Macro key you want to assign to, press your desired key combination, and then press the Macro Live again.
However, the two new customization features that Isku brings are the Thumbster keys and the Easy Shift key.

Lets start with the Thumbster keys. The space bar doesn’t have to hog your thumb all the time now, as the Isku features three keys below the space bar that give you extra functions to make you more efficient, and they are fully programmable, although they are designed for quick swtiching between profiles.
The other feature, Easy Shift, pretty much doubles the customization options. Easy Shift gives a secondary feature to pretty much any customizable key on the keyboard, from the functions to the thumbster to WASD keys. The Easy Shift also plays a part in the Roccat Talk feature.
Yup, that’s one the coolest new features in the Isku. Roccat Talk allows both your Isku Keyboard and your Roccat Kone mouse (or any other Roccat product with the Roccat Talk) to work together. You can configure your desired functions on the mouse, and use the Easy Shift key to execute said functions on it, with the mouse giving you visual feedback. For example, you can now use your keyboard to activate the Easy Aim function on your mouse.

Other than the major features, there are other smaller areas you can customize. Through the control panel, you can adjust the brightness of the backlighting, from full brightness to no light at all, you can disable the windows keys (we all know how annoying they can get), and you can even customize the speed at which a key starts repeating its function when its held down! Seriosuly, I’m surprised the keyboard doesn’t allow to customize the shade of grey that I want the wrist rest to be at.
And once customized everything to your specific likings and comfort, you can change the profile and assign entirely new customizations to that profile. You can do that a total of five times.