Ed, after you use the DCS for a while, you'll discover that if you have more than one remote, you can make a real MESS of the locomotive numbers! 
I have a couple of remotes for the layout that I try to maintain the numbers in sync, and then I have one for my workbench, that one I regularly reset to clear out all the engines. Some time back I got my two layout remotes so scrambled that I just reset both of them and started adding the engines one at a time to one. Then I cloned that one to the other one. The DCS scheme of keeping the engine numbers in each remote doesn't impress me, it's a PITA to maintain multiple remotes.
If I'm going to run one of my DCS locomotives using the workbench remote, I first reset it to make sure it won't change the engine number of the locomotive when I add it.
