About editing
You can create, edit, and delete features in the various editable layers in your map. When editing features stored in the map, your edits are saved when you save your map. When editing features that refer to the features in a service, your edits are applied to the service automatically.
See the following topics to learn more about how you can edit features:
Change how features are displayed
Edit the pop-up content of a feature
3/11/2013