I'd leave them alone as they'll be fine. If its not losing color in that area, I wouldn't worry about it.
However, if you did want to cut and transplant, they can handle that easily. I'm not sure though that they'll glue easily. You could wedge it between rocks or some prefer to use bridal veil over them or something thin to attach them. They'll do so within a very few days if they're happy.
"Life may not be the party we hoped for but while we are here we might as well dance!"