Your question is UX Design Challenge: Manualless Instructions. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design an alarm clock with just 3 buttons and describe the interactions to set time, change time, set an alarm, modify an alarm, and delete an alarm. Then design a page from an instructions manual without using words, describing instructions visually only.