PS3 uaer: How do I close the little lock icon on the Hotbar

I can't find anywhere to do this in any one of the menus? I heard that on the pc version, you just click on the lock icon itself to lock it. Do I need a ps3 usb mouse to do it? Maybe in the future, they could add something in the hotbar config menu to easily do this.

PS3 User*

I can't remember which analog stick it is. But you press down on it. I never use it as a tank because it is very distracting when you need to always watch your fellow party members.

Just use the virtual mouse if you don't have or don't want to use real one - Hold L1 and Press R3 to activate, then right stick to move, L2 + R2 are left + right mouse buttons. Use L1+R3 again to toggle back. It's actually prompted on your screnn in the bottom right corner as well plus it was introduced to players via one of the active helps screens too.

Thanks guys