Change which AppDrawer is started (Google Now Launcher) I've recently installed Beautiful Drawer because I would like to categorize my Apps in the Drawer. I'm using a Nexus 5 with  Kitkat and the default Google Now launcher. My phone is not rooted.

Is it possible to change the default AppDrawer which is started when tapping on the AppDrawer-symbol on the main screen? It should start Beautiful Drawer instead of the default Drawer.

Here is a picture which shows the icon I'm talking about:
No. The app drawer is part of the same app as the home screen itself: the launcher app. You can only replace both of them at once. Some launchers don't even have a separate app drawer: the list of apps is a seamless part of the home screen itself.