Fine Tune Octolapse Camera Settings

Is there a way to fine tune the camera settings in addition to the slider? My situation might be unique, but the exposure settings for my camera go from 0 to 10000 and for whatever reason I need to have mine be less than 13. If I move the slider at all, it goes down to 1 (which makes everything black) Is there a way I can manually input the number in there sort of like the mjpeg streamer control webpage?