 adding a field to an entity subtype goal add a field to an entity subtype see managing content structure for an overview of entity types and subtypes as well as an overview of field types steps navigate to the page for managing the entity subtype you want to add the field to for example to add a field to a content type in the manage administrative menu navigate to structure   content types  find the particular subtype that you want to add the field to and click manage fields  click add field  in add a new field  select the type of field you want to add see managing content structure for an overview of field types the label field should now be visible enter a label for the field which is used as the field label for both content editing and content display click save and continue  on the next screen enter a value for allowed number of values  you can limit the field to one value per entity item a set number of values or set it to have unlimited values click save field settings  on the next screen optionally edit the settings for the field which vary depending on what field type you are creating for all fields you can edit the label   help text  text to be displayed below the field on the content editing page and required field  to make it so a value must be entered in order to save the content when editing you can also configure a default value for the field click save settings  you should be returned to the manage fields page with your new field in the list  