You can execute the program in "Visual Step Mode" by using the 'Visual Step' command in the Mode menu. Visual Step Mode allows you to run the program "slow motion", seeing each step as it is executed, and it works as follows:
When you select the Go command from the Debug menu in the visual step mode, the finger icon moves line by line as the program is executed. This provides a means of visually checking the program execution sequence. To pause the execution in the visual step mode, select the 'Interrupt' command from the Debug menu.
To stop the program, press the 'Kill' toolbutton or select the 'Kill' command from the Debug menu. The "debugging enabled" status is released.
To restart debugging, reload the program by pressing the 'Restart' toolbutton or select the 'Restart' command from the Program menu.
Start the program by pressing the 'Go' toolbutton or by selecting the Go command from the Debug menu.