I couldn't help myself and went about the task well rested and with full concentration.
Looking back, you can easily say: It wasn’t that difficult.
I followed Erel's video exactly. Because it's impractical here in the forum, I downloaded it and made it available to you in my DropBox. I hope Erel doesn't mind. If I have violated copyright, I will have to delete it again.
I would like to point out one more thing: Pay attention to the spelling of "Identifiers". I entered "B4i.*". In my app I entered "b4i.kunden". An error occurred immediately. After correcting it to "B4i.Kunden", everything was OK.
Regards, RauchG