The 4th mouse button, allowing to double the number of macros on the side buttons is unusable because of that you press one of these buttons on the side, it necessarily relies on the 4th button, I had to disable it Simply. Fortunately the driver is very complete, and to configure precisely all buttons and sensitivity. The side buttons are too numerous to use the blind and ceus at the bottom, towards the palm, are difficult to use without changing the decision of the mouse. Finally, a mouse gamer 6 buttons enough, with a good keyboard gamer for macros.