The content area of main window Server Sets tab contains a list of server sets (left) and a status page for the currently selected server set (right):
Each server set in the list (left) also has an icon indicating the current overall status of the server set: green / check mark = all ok, red / cross = one or more problems, grey / ? = unknown status.
The status page (right) displays detailed status information for individual servers and for individual DNS servers / host names.
Click the white circle with the arrow down to "open" further details for each item.
For servers this reveals two buttons:
Polling history...
Clicking this button opens the Server polling history dialog for this server.
Ping...
Clicking this button opens a new command line window running "ping" with this server's IP address. For quick diagnostics.
Tool bar buttons
When the Servers Sets tab is selected, the tool bar has the following extra buttons:
New server set
Click this button to create a new server set. Takes you to the Server set properties dialog.
Pause
Pause / resume polling for the currently selected server set.
Poll now
Makes Simple Failover poll the currently selected server set immediately - not waiting for the next cycle.
Delete
Deletes the currently selected server set.
Properties
Opens the Server set properties dialog for the currently selected server set.