There is also a stitch plate with a single needle hole. Mostly important for piecing as the single hole prevents fabric from being sucked into the bobbin, but I know some use it for FMQ as well (don't remember why).
BUT ... if you use this single hole plate remember to change it back to the regular plate before you use the machine for anything other than single needle in center position only (ie no zig zag, no moving needle over from center for 1/4", etc).