The component can be scheduled or run using a quick job manually against the workstations.
Running the Sophos Central Installer will use the pre-populated variables in the site. No additional input is needed.
Running the Sophos Central Installer - Product Prompt requires additional input. You'll need to mark the components needed with True (Default) and False for those not needed.
This component is used if you need to install a different component for a few machines only.