checkbox (a window item, on the computer screen, which toggles check/uncheck by a single click)

shape or structure / a blank document, a template

foam

please give me / (expressing a request) please do something for me

Please do (action)

Please do not (do)

please give me / (polite, imperative) please do something for me; expressing a request

click (the act of pressing a button on a computer mouse)

(computing) to click (press and release (button on a mouse))

needed, necessary