How am I going to explain this one...

Okay, I have the following class and struct set up, and updated the environment variables in SceneDelegate too:

class PointsTables: ObservableObject {
    @Published var taskdata: [PointsTable] = []
}

struct PointsTable: Identifiable, Hashable {
    var id = UUID()
    var recordID: CKRecord.ID?
    var task: String
    var stretch: Int
    var achievable: Int
}

I pull the data from CloudKit database which contains as task, stretch and achievable values.

In my view, i have this:

    @EnvironmentObject var listTasks: PointsTables

Now I want to create a Picker with SegmentedPickerStyle, that creates just the task string from the Struct, eg:

Picker(selection: $taskSelector, label: Text("What task?")
                ) {
                    ForEach(listTasks.taskdata) { index in
                        Text(index.task)
                    }
                }.padding(.bottom)
                 .pickerStyle(SegmentedPickerStyle())
                 .labelsHidden()

But this gives me a Segmented Picker, but no selection, as I can't work out how to do the ForEach with an index (which I don't think has one).

Anyone offer some advice? I feel I'm close to the solution, yet miles away.

Thanks for the suggestion. With a new view on my approach, I did persevere with my code. In the end, i found:

listTasks.taskdata[index].task 

was the format I was looking for in the end, and now have a succesful picker. I also learnt by putting the Picker in it's own struct view and calling it, prevented the slight flicker you see as iOS refreshes the view. Good tips. Thanks