CGAL recently added wrappers to their library to enable global and local point-cloud registration using the OpenGR library. In the current version, registration can only be performed between two point-clouds. The goal of this project is to extend the package to multiple point-clouds, by implementing into OpenGR the approach described in the following paper: Global Registration of Multiple Point Clouds Using Semidefinite Programming, K. N. Chaudhury, Y. Khoo, and A. Singer, SIAM J. Optim., 25(1), 468501. (34 pages).