incomplete doc for Array Settings

More info from the _psx_ about this issue here:

https://forums.garmin.com/developer/connect-iq/f/discussion/290434/array-in-settings

More info from the _psx_ about this issue here:

https://forums.garmin.com/developer/connect-iq/f/discussion/290434/array-in-settings

And nobody answer in https://forums.garmin.com/developer/connect-iq/f/discussion/290434/array-in-settings.

And for this reason good documentation is necessary.

BTW, the best solution is to put complete example from SDK test scenarios so developer is sure the example is valid and by design.

Now I do something  (rather, I am cruelly trying to do something, even though I have already done a few settings) and in sim can't see expected results.