You will find more detailed information about managing data on your deployment in Section 6. But here is a quick run-through about managing data on your deployment through the sidebar and toolbar in any of the views mentioned earlier: Map view, Data view, Activity View and Settings View.
Add new post: Add new posts from the sidebar as shown in the screenshot below.
Sources: From the toolbar, Get a breakdown of incoming posts by source (when in map view or data view).
Languages: From the toolbar, visitors to your Ushahidi instance can select the language they'd like to interact with your data in. The language list consists of languages that have been translated.