I did create a new Text-Script that creates a complete line for the address field and wanted to drag it into the addressfield and got the error message “Not supported for scripts”.
I expected that the text - selector was inserted instead of typing in the selector manually.
Currently, adding text scripts via Drag&Drop to the page is not supported. You will need to type in the selector manually. Alternatively, if you drag one of the Address fields on to the page and then modify the text script as desired with the other fields, it will reflect the changes on the page, of course.