If you want to change the hair a bit, dont use the dials but use the hair tool icon, select the hair part you want, click on the hair tool item, use twist or curl or something else, and you also see root and tip, you can change teh slider to where you want for instance the curls, and a bit lower you see a slider with length. you can grow the hair there, without losing the style. Works much better.

And yes you can drape it also a bit. I nice trick is to use a pose on frame 1 and a different pose on frame 30, then calculate the hair dynamics. Then slide from frame 1 till a frame where you like the hair ( for instance if she bends a bit over the hair should be in her face more) if you like it then hit render and you have a nice dynamic hair wich follows all the poses, in animation but also in still images.