I've installed Car Home for when I have my phone docked in my car and want to use one of the buttons on the home screen to run Google Music and Maps. This way when I'm driving and listening to music and want to navigate somwhere I can just hit the home button to go into Car Home's main screen then hit the shortcut button (which is a nice large easy to see button while driving) to run multi window. Anyone have an idea on how to do that? I've tried digging around but can't find a way. I'm also rooted and running xposed/wanam if that makes a difference or if there's a module which allows this that someone knows about that I don't.