Is there a specific way to use the S Pen to launch the air command for my Note 4? Most of the time nothing happened after I hovered the pen above the screen and pressed the button, whether I pressed first then hovered or hovered then pressed, only managed to launched it a few times after trying for 2 hours and I'm not sure how I did it. The pen is not spoilt as it worked fine on my tablet. Can anyone help? Thanks in advance!