How to cut and sew the opening

In the front draft the AB part which is 2 " should be cut separately and not with the pattern. This will be later used as an extension to the left side  which will have the spaces for hooks to attach on to. The right side will have the hooks. The right side overlaps the left side. In the left side hook loops are located near where the extension AB and the left mid side of the blouse meet. I will be posting a picture of this very soon for everyone to understand  clearly. If you decide to have a front opening you do as explained above or if you wish to have back opening  you apply the same concept to the back side.