Request to invite 2 external collaborators, please

Hi, My group works very closely with a 2-person group at the University of Liverpool (Dr Anna Fowler, PI, a.fowler@liverpool.ac.uk; PhD student Hannah Kockelbergh, h.kockelbergh@liverpool.ac.uk). We have a joint patent application for some of our coding-based analysis, which may form the basis of a new diagnostic test. We would very much like Anna and Hannah to be able to work jointly with us on this and other code in Gitlab. Can we invite them both as external collaborators, please? If there is any charge for so doing, I would be happy to consider this. Many thanks, Liz Soilleux (ejs17@cam.ac.uk; PI, Dept of Pathology, University of Cambridge)