Goal: Go to settings, open notification tab and switch on All Gmail notification
Steps:
action: action_type: navigate_back
step_instruction: Go back to the previous page
action: action_type: click
step_instruction: Click on the overflow button at the top left corner of the screen to view settigns option
action: action_type: scroll
direction: down
step_instruction: Scroll down to view the settings option
action: action_type: click
step_instruction: Click on the settigns option to open it 
action: action_type: click
step_instruction: Click on General settings to view notification tab
action: action_type: click
step_instruction: Click on Manage notifications to open notification tab
action: action_type: click
step_instruction: Click on the toggle button of All Gmail notifications to switch on notifications