Reply To: Altering the waist of a dress pattern with 4 side seams.

[the_professors_assistantKeymaster]

Instead of dealing with each individual piece, what you could do is tape your pieces together. For example, tape your side front to front and then use this to increase at the side seam. It might be easier to visualize on where to pivot. I would do the same for the back as well. Just make sure you overlap the pieces for the seam allowance. Hope this helps! 🙂