Goal: Change the Font size to 15 for the letter.
Steps:
action: action_type: click
step_instruction: click on the edit icon at the bottom of the screen
action: action_type: click
step_instruction: click on the upward arrow button at the bottom left corner of the screen
action: action_type: click
step_instruction: click on 16
action: action_type: click
step_instruction: select the size 14