The difference is that it doesn't insert the command. Rather, it allows you to click on a command that's in use and then finds the button that it's assigned to and switches the GUI display to show that button. To find the reference to a command, just highlight its name in the list. The CM display will automatically switch to the controller, button, and mode that references the commands.

At the bottom of the Command Finder are a pair of buttons. The first is "Find Next". It's used when a Map contains more than one reference to a particular command. When you select a command initially, the Command Finder looks through the Map until it finds a reference. That's the one that it switches to. It also looks ahead to see if there is another reference in the map. If it finds another instance, it will enable the "Find Next" button and you can click that button to step through the various instances of the command until you find the one you are looking for. This continues until the Command Finder finds no more references to the Command, at which point the "Find Next" button is disabled. To start through the list again, you just need to click on the Command name in the list again which just starts the process all over.