Thanks Harv. This is a good start for me and I appreciate it.

I will follow up later as days goes by with more lengthy responses and ideas, because I think that the drawback is in the owner's manual which doesn't really explain anything very well (or simply I should say) and that can be fixed, and I have other ideas as well.

But thanks for what you've given here because I would not have been able to figure it out otherwise.

More to come.