To find and add iMessage apps (Star Wars Stickers packs) that you have downloaded:
- Launch Messages and tap the App Drawer icon.
- Tap the Store icon.
- Select the Manage tab at the top and tap the switch of the app you would like to turn on.
NOTE: If Automatically Add Apps is set to ON, any iMessage apps you download will appear in the app drawer. You can also manually add downloaded apps to the app drawer.
- The app should now appear in the App Drawer within iMessages.