Managing New Permissions after upgrade to version 7

I am using an Admin account but when i go to manage the permissions on a collection it says i do not have rights to do so. What access level is required to modify access ?

Duplicate ticket, answer is explained here: Get Postman’s Latest Features - Migrate to Version 7.0 - Postman Blog

Ok issue was even more complicated then thought. The original reuqests where shared from a private account to one of a team. So the private account had to be upgraded first and assign permissions. Is it possible to completely migrate form one account to the other?