Learn & Customize the Home Screen. Add, Move, & Remove an App: To add an app to the Home screen, swipe up from the bottom of the screen to access the Apps tray. Select and drag the desired app to the desired location on the Home screen. To move an app, select and drag the desired app to the desired location. To remove an app, select and hold the desired app then select "Remove". To uninstall an app from the Apps tray, select and hold the desired app.
Select "Uninstall", select "OK" to confirm. Change Wallpaper: To change the wallpaper, select and hold an empty part of the Home screen. Select "Wallpapers", navigate to, and select the desired wallpaper. Live wallpapers can increase battery consumption. Select "Set wallpaper".
Select the desired location. Change Screen Grid: To change the screen grid of the Home screen, select and hold an empty part of the Home screen. Select "Settings", select "Desktop", select "Desktop grid", select the desired grid size, then select "Done". Change Home Screens: To edit the Home Screen panel, select and hold an empty spot on the Home screen. To set the default Home panel, swipe to the desired panel, then select the Home icon at the top of the panel.
To rearrange the order of the Home screens, select and drag the desired Home panel to the desired location. To add a new Home screen, swipe right to, and select the Add icon. Select "ADD BLANK". To remove a Home screen, select and drag the desired Home screen to the Delete icon at the top of the screen. ♪AT&T jingle♪.
Source : AT&T Customer Care