Remove Create a NEW from dropdown when using Page.add_field

Hi all,
Does anyone knows how to remove the option “Create New” from any dropdown?
In my case i have created a Page and added the add_field( linktype to Supply) but i don’t want users to be able to create when on the PAGE but if the user is on the desk and has rights he can created as many as he desires… :slight_smile:

Thanks in advance.