Task: I'd like to lengthen the workout period, therefore set the timer for 5 minutes longer.
Steps:
click on the +1 button 5 times to add 5 minutes 
click on the +1 button 5 times to add 5 minutes 
click on the +1 button 5 times to add 5 minutes 
click on the +1 button 5 times to add 5 minutes 
click on the +1 button 5 times to add 5 minutes