The content area of main window Log tab shows what Simple Failover is doing - live.

The number of log lines displayed in the log are can be configured in the Options dialog / Logging section.
Toolbar buttons
When the main window Log tab is selected the toolbar has the following extra buttons:
Copy to clipboard
Copies all the content of the log area below to the Windows clipboard. Insert text into another program (like notepad) using the paste function (CTRL+V).Clear
Clears the current content of the log area below.Freeze
Freezes the content of the log area below. Click again to resume.