Support › MB Relationships › Manipulate the UI
Please have a look at http://derosia.com/contributor.png
My post type is 'contributor'. How can I make the dropdown box say something other than "Select a contributor"?
Also, can I remove the Add More button?
When editing the relationship with UI, you can navigate to the Field tab, set Placeholder and max item to 1 to remove the Add more button. Screenshot https://imgur.com/AVCsuvU