On Nova Launcher for Android, you can add multiple docks on the bottom of home screen, There is a toggle button to show or hide dock on Nova Launcher. To add this button on home screen do as follows:
See Also: Nova Launcher Review
1. Tap and hold your finger on home screen
2. Select "Nova Actions"
3. Scroll down and tap "Toggle Dock" to add the button to the home screen
4. Now you just need to tap this toggle button to show or hide Dock