We have a Survey inside SharePoint communication online site, and we set that users can view and edit their own responses ONLY as follow:-
but in our case we want 2 users to be able to view all the responses, i tried to grant them Edit but still they can view only their own responses,, so my question is what is the minimum permission (below Full Control) required to be able to view all responses? can we create a custom permission level for this, and what we need to specify exactly ?