Help:Menu Railyard
From TrainzOnline
Railyard displays a list of all installed rolling stock, locomotives, coaches, etc. Clicking an item in the list shows it in the 3D view and allows you to sound the horn, activate the lights, and raise/lower the pantographs where appropriate.
Main Menu - Returns to Main Menu
Rotate left/right - Adjust the camera viewpoint
Zoom in/out - Adjust the camera zoom
Favorites - Toggles the list favorites filter
Info/List - Toggles between the train list and selected train information
Horn - Sounds the train horn, if horn icon appears
Lights - Activates the trains lights, if light icon appears
Pantographs - Raises and lowers the trains pantographs, if applicable