Different slit styles for our skirt block pattern

Hi Nehzat,

I've made a skirt from the block pattern you taught, but since I prefer a more modest style slit I struggled with changes when sewing it together, by copying the slit from another skirt.  So I would like to know what changes should be made to the drafting portion of the process for different styles.  The overlap slit for example, this is the one I copied from another skirt, but how do I draft it onto my block pattern.  I believe there would be a difference in the way it is drafted.  There is another style that I saw on vintage style clothing. I don't know what it is called, but it looks like an abutted slit from the outside, but when you walk and it opens up there is material behind it, (I believe it is called a godet)  I would like to know how to draft that also.  I like vintage sytle clothing, it looks so tailored and elegant, but it is more challenging.  I sure would appreciate your knowledge and help with these. 

Thank you, so very much

Carol