As outlined in the following image, you simply use the appropriate menu selection to choose the particular graphics processor you want to use for the application. This setting will now allow you to right-click on any executable or shortcut and select the graphics processor to be used when running the application. To enable this setting, click 'View' from the NVIDIA Control Panel menu bar, then select the highlighted option as indicated in the image below. You can activate a setting in the NVIDIA Control Panel that allows you to override the Optimus application profile setting and choose a particular graphics processor to use. How can I override the default graphics processor for a program? This article highlights the various customization settings made available to you within the NVIDIA Control Panel.
NVIDIA has also engineered Optimus to be fully customizable to suit your specific preferences. NVIDIA Optimus technology is designed to be transparent to the end user and completely automatic.