Unwise to even consider transfer of breast tissue from 1 side to the other
Technologically, this may be possible. However, as you have read by the multiple informative responses by the other plastic surgeons, there is no reason to do this, it would present with potential oncological risks (cancer), you would deform the donor breast and there are other options. If you are seeking a small amount of volume/deformity correction, fat injections would be reasonable.
Seek an opinion for your problem from a borad certified plastic surgeon.