See Manual Input of Data for instructions on using the Manual Input view.
The Manual Input view provides the simplest way to get tuples into an application through one of its input streams, because it allows you to send hand-typed tuples, or JSON-formatted tuples, and immediately see the results in the Output Streams View. By default, each tuple sent is also logged to the Input Streams View.
To send tuples through an application using the Manual Input view (and also the Feed Simulations View), the application must be running. For more information, see Overview of Running Fragments.
By default, the Manual Input view is located in the upper left corner of the SB Test/Debug perspective.