Tap the centre knob to change the background pattern. There are 3 patterns to choose from. Tap actions on the date and 5 icon buttons will launch the calendar, Samsung Health, messages, timer, music and weather apps. Tap actions were tested on a Samsung Galaxy Watch and may not work on other smartwatches. If the tap action for timer does not work because there is no timer app in your Samsung watch, please try installing the free timer app from Samsung Electronics. The tap action should work once the timer app is in your watch. The app can be downloaded from Galaxy Store under the watch apps category. A big Thank You to dooks2 for the Transitions Watch as I learned the multi-screen switching script from it.