prefillable fields

app/controllers/api/templates_controller.rb

@@ -109,7 +109,7 @@ module Api
           submitters: [%i[name uuid is_requester invite_by_uuid optional_invite_by_uuid linked_to_uuid email]],
           fields: [[:uuid, :submitter_uuid, :name, :type,
                     :required, :readonly, :default_value,
-                    :title, :description,
+                    :title, :description, :prefillable,
                     { preferences: {},
                       conditions: [%i[field_uuid value action operation]],
                       options: [%i[value uuid]],