Your Samsung Galaxy Tab S2 uses by default the TouchWiz launcher made by Samsung, and generally works just fine. However, you might consider using one of the third party launchers downloaded from the Google Play store for additional features and flexibility that you might not find in TouchWiz. Here’s how to change the default launcher on your Samsung Galaxy Tab S2:
- Download a third party launcher using the Google Play Store.
- Open the new launcher and configure how you like. You should have access to a launcher settings app from within the launcher.
- After launching then closing an app or the app tray, you will be prompted to pick a default launcher. Tap the icon of your launcher and and then tap Always to keep using the new launcher whenever you go back to your home screen.