Ah, I seem to have saw your video link early, it only had the second video. I think you added the one on top after I viewed the link.
As for the logic, only the bottom bar will be followed eventually, as I described in the scenarios. I'd help you with something that may work logically but I've been away from my computer for quite some time. Dry-coding something on my phone is about as fun as sweeping a basketball gym clean with a paint brush.
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