Hi, I'm new and I'm wondering if there is a way to asign certain points, planes or features for example and for these to keep their shape after optimizing. I'm working on this chair design and want the body to keep it's general shape while being optimized, and for the holes to be kept intact and connected to the body. Further, is there a way to keep the shape of the design body somewhat intact, so that the general shape is still recognizable after optimization?

