Management right for session conveners

We need a role for session conveners which are allowed to change contributions, such as change the type from oral to poster. Which permissions do I need. If I give “Paper management rights”, contributions cannot be changed. If I give “Manage” rights, users can change contributions but they can then also change everything which is not what we want. Is there any hidden trick?

Hi, unfortunately there is no role below manager who can do what you are looking for.