I want to add a new enterprise custom field that is a 'person' field so will pick up a user from our Office365 tenant - can anyone help with how to do that?
This is not possible in Project Server / Project Online without custom code and with the custom code it only works in the Project Detail Pages in PWA and not in the Project client. Create a normal text field, add the field to a PDP then also add the custom JavaScript code to the PDP. Here is an example for the custom Javascript: https://gallery.technet.microsoft.com/projectserver/Use-SharePoint-people-cc8289de
