Then, the FX will be ON as long you touch the Touch Strip and will turn OFF right after your finger stops touching the Strip. When you use Shift + FX# button, you activate the 'Auto ON' function, and the FX button starts to blink to indicate that. The FX Touch Strips can be used as ' Auto ON' FX button, and I added an ON/OFF switch for it, it's pretty cool.The FX controls works with either Simple and Group FX Units.