Front on fold
Controls if the front is made of of a single piece of fabric cut on the fold, or as two mirrored pieces that are sewn together down the center.
Advantages: Saves a construction step, removes a seam, may be more comfortable.
Disadvantages: Doesn’t work with zippers, harder to fit a larger pattern piece on the fabric (may cause more fabric waste).
If using a front zipper, do not enable this option.