Hi, 

I have open project 8.1 installed and I'm trying to use the APIs but I have noticed that not all endpoints available in this documentation http://docs.openproject.org/apiv3-doc/ 

However, I have noticed that not all endpoints exist, e.g. /memberships/

Is there something I should configure to enable all endpoints? 

Is there a way to customize the response of some endpoints? or to extend the existing endpoints?