Do you have FileMaker Pro Advance? If not I highly recommend having it. If you take a starter solution, Filemaker Pro Advance has a script debugger that will allow you to go step by step through the scripts that are executed. There is also a Data Viewer that is helpful to see what values are begin used. These should give you a better understanding about what the scripts are doing and how they work.
start with the solution, play with it a while, study it, make notes on what you would do, then create your own
Yes i have the advance 14. Ok thank you