LG G2 the double tap to lock screen anywhere is in op when using Nova Launcher
You can tap the top of the screen but not anywhere on the home screen. It's a great feature and would like it to work while using Nova. It seems that that double tap unlock does not work well either while Nova is on.
Install Screen Off and Lock from the Play Store and set Nova’s double tap gesture to launch it.
I like to have feature where I can turn the screen off or on buy double tapping on screen. LG G2 this feature.