To start logging the variables that were added in Watching Variables, click the Write Log to File button. After saving the file, remove the breakpoint from the program and press the Continue(F5) button. The program is now running as fast as the simulator are able to simulate. The value of the variables are updated in real time in the view.
Stop the debug session using the Stop Debugging(Ctrl+Shift+F5) button. The log file should now contain a record of all write events to the variables that was watched.