Just reading the write up in the 2017 RTR catalog about the upcoming DCS explorer:
It appears to be a limited version offering a good taste of DCS control but not the full features. It seems to cover all the basics for the new operator to start experiencing DCS and would be a great improvement over the DCS remote commander. Somewhere I think I read in previous posts that it would control three different proto 2 or 3 locomotives but nothing about that in the write-up. Perhaps Barry can enlighten us.