Add editing to layer in social media map application on arcGIS.com

[GinaKiani]

Hello
I made a web application through ArcGIS.com using the social media template and would like to add editing capabilities to one of the layers (CultureAndCommunity)
The map application can be seen here:
http://uscssi.maps.arcgis.com/apps/SocialMedia/index.html?appid=7557e578281b4319a662705e211f8267

The layer I am trying to allow editing features for is here:
http://services1.arcgis.com/ZIL9uO234SBBPGL7/arcgis/rest/services/OaklandCultureCommunity/FeatureSer...

As seen in this layer by itself, I have published it from arcGIS desktop with the editing features enabled
I appreciate any help or direction at all in allowing users to be able to add features to this layer or edit the attributes of the layer

Thanks so much!!