I just happened to know the product numbers I wanted and entered them in the search bar one at a time to add into the shopping cart. There might be an easier way to go about shopping here if you're browsing AND buying, but I had already done my browsing via the catalog posted on MTH's website the other day.
I've purchased from Steve before, and thought I'd give him some additional O-Gauge business this time around for MTH 2015 Volume 2. I figure any forum sponsor that has such a magnificent train layout in his store deserves our support!!! Hope to visit there one day.
David