3.4.1. When Program starts :

This block is used to start the program followed by the command what to do when it starts !

Example 3.4.1 

When the Program executed - it goes to the app screen page 1 ( Ref. below picture )

3.4.2. Program Ends :

This block is used to stop the program.

Example 3.4.2  

Execution of the program ends by this command !