The iTrain 4.0 remote is an App to control your trains. It connects as a client to iTrain 4.0 Pro in Server mode and cannot be used on itself. It will automatically find a server on the network or it will stop with a message if it cannot find any server.
The first screen is a list of available locomotives. If you select one you go to a detail view of the locomotive in which you can change speed and direction and control functions. In addition you can start, finish and stop routes.
For manual control there are + and - buttons to reserve a block and to cancel the reservation