The tool Add ArcGIS Online Service can be found in the lower toolbar of the WebOffice mobile client. It is used to add preconfigured ArcGIS Server map services or ArcGIS Online services to the current WebOffice 10.2 SP3 project in the WebOffice mobile client.
The following map service are supported by WebOffice 10.2 SP3:
| ▪ | preconfigured ArcGIS Server 10.2.x map services |
| ▪ | preconfigured secured ArcGIS Server 10.2.x map services with stored credentials |
| ▪ | preconfigured secured ArcGIS Server 10.2.x map services without stored credentials (authorization dialog directly in the browser) |
Click the tool in the lower toolbar of the WebOffice mobile client to see all preconfigured map services.

WebOffice mobile client - Add ArcGIS Online service (lower toolbar)
On the right side you can find the buttons to add and remove specific layers. When adding a map service it will be displayed automatically in the map.

WebOffice mobile client - adding/removing ArcGIS Online services
When selecting a secured map service that has been configured without stored credentials an authorization dialog will pop up. Enter the credentials and click Authorize to show the map service in the map.

WebOffice mobile client - authorization dialog for secured services
Note: Be aware that since the WebOffice mobile client does not have a table of content, it is impossible to change layer visibility like in the WebOffice html client.
Note: See chapter Add ArcGIS Online/Server Service for details about the tool configuration in WebOffice author.