If you develop and test your programs in the Gambas IDE in a delimited Gambas project, you will mainly run the program with F5. You can also just compile the program or extend the compilation to all already compiled classes and modules. You can always be sure that all Gambas programs are working in the background and will show you the direction with various messages, if it is stuck in a module or a function or if you need help with the components:
Program development and testing in a graphical development interface - an advantage of working with gambas - which you already got to know in chapter 3: