The phrase "manual option" means a choice or alternative that requires a person to do something by hand or manually, rather than relying on an automated or electronic process. Full definition
It is front - wheel drive with manual options. (autolist.com)
The four - speed manual option disappeared after this year. (en.wikipedia.org)
This phone focused more on the camera experience than we'd ever seen from a smartphone before, offering manual options for anything and everything you could think of. (androidheadlines.com)