The first time you open a layout, there is a lot to take in. Here for example is the Turtle Creek Central surrounded by various types of TrainPlayer components:

Toolbars. TrainPlayer comes with a
default toolbar containing buttons for building and operating track and
trains. You can choose your own set: click Customize and drag tools
where you want them.
Clock. The clock works in
conjunction with the schedule, and operates at scale railroad speed.
Schedule Window. The schedule
shows train arrivals and departures on layouts equipped with named stations.
Switch Window. The switch window
shows a close-up of the upcoming switch, or the one at the cursor
Control Panel.
The control panel is your walk-around pack for operating the selected train, setting speed and direction, uncoupling, editing cars, sounding the horn.