Hello Claude31,I could implement your delegate proposal. Examples I got:row selected is: [0, 1]row selected is: [0, 4]row selected is: [0, 6]Presumably the first integer in these arrays refers to sections.Thank you very muchIs there an analogous delegate to monitor when a selected row is unselected?Thanks for your answergefa

Hello Claude31,my app is an iOS app. Unfortunately, I can't see in the delegates (AppDelegate.swift, SceneDelegate.Swift) the delegate func you propose.Any idea why?Thanks for your helpgefa

Hello "Quinn The Eskimo",Thank you very much for your advice. My App will only be distributed via the Mac App Store. It seems a license key is not necessary.By the way: I am pleased to get your advice again. In the early days of the development of my App (incredible: 6 years ago) you gave me an invaluable advice how to save data files on disk (Follow-up: 252372228). This was a milestone in the deveopment of my App. Without it I couldn't go on. Saving data users generate is absolutely essential for my App. Now my App is ready to be submitted and uploaded to the App Store. I very much hope it will be accepted.Best RegardsGerhard