A connection node by default contains a question group. Question groups contain a set of predefined questions.
If you have (permanently) deleted a question group, it can be added back to the connection tree using the right click pop-up menu:
What you see next depends on whether or not the question group for the current connection is already present in the tree:
Question Groups can be deleted from a connection. The procedure is as follows:
A question group is started by double clicking the question group node. Alternatively, right click the question group node, and in the pop-up menu click "Open":

When the wizard is started, follow these steps:
If you chose to execute "Later", you need to track plan execution by means of the Plan Status Wizard. If you chose to execute "Now" you are automatically taken to another screen that shows the progress of the execution. On completion, the progress bar shows 100% and the display and delete buttons are enabled.
To view the output, click the "Display" button. XML output needs to be processed (this takes some time), and as soon as this is ready the question group output can be reviewed. An example of the output window (shown in part only):

The output window allows you to browse around, and review individual question output much like you do when opening questions individually.
After you close the window, the output is lost. It is deleted automatically from the server to prevent uncontrolled heaping up of output on the server. To see the output again, the entire process must be executed from the start.