Here’s a demo that creates the look you’re going for: Thunkable
One of the frustrating limitations of Thunkable is that even though you should be able to detect a row or column click, you can’t because those components are not listed in the Any Component “click” event block:
You can select a Group but… it looks like group components don’t exist anymore.
I complained about this and submitted a feature request two and a half years ago but it hasn’t been improved.
So… what to do? I guess you could create a custom Data Viewer List (DVL) layout since those have “click” event blocks.