Thank you so much! I checked it out, it is cool.
Now I have to apply this to my application which has a bigger database. (If I stuck somewhere I will write you here)
I will also have a few questions left. Could you please check them out, maybe you can help with them too.
I'm kinda new to FileMaker, but I have tried to create this project in Excel, PHP and I couldn't do it yet.
I will post the other questions in 24 hours.
Thank you again!