Thanks, Janice. I'll keep looking.
Just went back and still can't make any progress. I also posted on BF's forum. Hope someone can help.
Thanks.
Went back again and started playing around with railcar switches and it moved to the "end of the line." There I found the hourglass and sand.
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It's not that I'm smart, I just stay with things longer." (approx. quote from Albert Einstein.)