Use
Article hierarchy maintenance has an authorization concept that allows you to pass on authorizations to every node of an article hierarchy.
The authorization applies to all lower-level nodes. Authorization to display it is not limited to a certain number of people. You can, however, limit the number of authorized persons, using standard authorizations.
Using transaction PFCG you can maintain two authorization objects: an authorization object for transaction authorizations and an authorization object for article hierarchy maintenance. A check for maintenance authorization is then carried out at the level of the entry nodes. If the user has authorization for a node then they can enter with any subnode of "their subtree".