Can I map a home touch button to something other than Google search on my LG G3?

[AC Question]

I have an LG G3 on 5.0.1. How do I map the middle home touch button (the circle) to something other than a Google search of my device/the web?

 

[B. Diddy]

Welcome to Android Central! You could install an alternative launcher like Nova Launcher, which allows you to customize certain button presses.